The entrance doorway opens up into chamber I at the west end of the south wall. At this chamber I side, the entrance has a recess 1.12m wide by 0.23m deep with a height of 2.70m. This was meant to take an inward opening security door (today, a somewhat less tall metal one exists). The recess still retains evidence of the fittings for the installation of the door, a pivot cavity is cut into the ceiling at the western end but there is no evidence of a pivot hole in the floor, which has now been plastered to install a modern door to secure the tomb. Bolt holes had been cut into both side walls of the recess at a height of 1.22m.
The chamber is both small and almost square in section, measuring 2.12m (east-west) by 2.1m (north-south). The height of the east and west walls are currently preserved to a maximum of 2.8m, whilst the north and south walls have retained evidence of the original internal height of the chamber, that of 3.15m, although none of the actual decoration of this area now exists. Some does exist belonging to the north wall of chamber III, where it can be seen that the wall was topped with a kekher frieze (see information about these fragments on ). From this it can be assumed that the walls of all the decorated chambers contained this decoration at the top.

A doorway located at the north end of the west wall leads to chamber II.

At the east end of the north wall is the recessed entry to chamber V. Cut through the corner junction of this north wall of the chamber and west wall of the recess, 7cm above the floor, is a small rectangular hole, however no photograph is available covering this section of this wall. This hole is one of six similar holes cut into the corner walls of the doorways of this complex. This feature, the purpose of which is uncertain but may have been to tether animals, occurs in other tombs in the Teti Cemetery. Cut into the east end of the recess ceiling is a cavity intended for the insertion of a door pivot, a hole can still be seen in the floor. There are no bolt holes in the side walls.

The entry recess, at the west end of the south wall, is undecorated on the east side and the ceiling, but the decoration of the west wall is part of the total west wall of this chamber.
In the chamber, the actual scene decorations appear to be quite high up the walls, bordered at the bottom by a red (top) and yellow (the yellow colour is now almost gone) horizontal bands of approximately 10cm, edged with thin black lines. These are placed above a blank dado area of just less than 1 metre in height, which was originally painted black, mostly lost, but the remains of which can still be seen in the image opposite, located in the north-east corner.

Being the closest to the entry, the scenes of this first chamber focus on outdoor activities. They were produced in relief, but of a mediocre quality with a fair degree of modelling. The actual details are largely produced in paint, especially noticeable in the fowling scene of the east wall, but even here they are not particularly well preserved.

The walls will be described in an anti-clockwise order, starting with the south wall.

See the of all but the top register.
The area of this wall, to the east (left) of the entrance doorway, is divided into five registers. They are all devoted to activities which take place on the river and oriented towards the scene of the tomb owner fowling which is located on the east wall. The only text is found in the bottom two registers.

 The upper register  depicts fighting boatmen (see ). Three boats are shown, each with two men aboard, wearing abbreviated kilts or loin-cloths. In most cases they have crowns and or neck garlands of lotus flowers. The men in the two boats to the left are engaged in the fight, stabbing each other with long poles, while the third boat appears to be fleeing the combat.

 The second register.  (See the top portion of the image below right.) The upper part of this register is now missing, but the scene appears to represent the transportation of food items in two papyrus boats, with three men in the first and four in the second. The only items now identifiable are the tails of three large fish.

 The third register  depicts fishing with a dragnet. Ten men divided into two groups of five are pulling the net ashore under the supervision of an overseer who stands in their midst and who, unlike them, wears a projecting kilt. The men are either naked or wear a loin-cloth which does not cover the genitals. Their movements and body postures are varied and the scene is lively. Details of the floats and sinkers of the net are clear and the eight fish caught may be identified as follows (from left) : Synodontis batensoda, Tilapia, Mormyrus kannume, Lates niloticus, Mugil (?), Petrocephalus bovei (?), Tetrodonfahaqa, Synodontis batensoda (see ).

 The fourth and fifth registers  are of a better quality and contain more details. This is also true for other lower register, perhaps because they are at eye level. Both registers represent the same theme, that of boatmen transporting gifts, which include birds, fish, baskets of fruit, vegetables, flowers and a calf. Each register contains two papyrus boats, with the water weed 'potamogeton lucens' floating on the water beneath them. The men at the stern, each wearing very little, expose their genitals; these men manoeuvre the boats using long poles. At the front of each craft, the men wear a short garment which only just extends down the upper part of his legs. Whilst those at the centre, even though they each carry food items, are mostly officials, as indicated by their titles and the projecting kilts they wear. The names of two of these men might even suggest a relationship to the tomb owner. The man in the centre of the first boat of register four has no identifying text but wears a kilt usually associated with the overseers of fowlers, herdsmen, or the like. All the men, except for one in the front of the first boat in register four, wear lotus crowns, three of them are unshaven. One man in each register carries with both hands a large fish. In register four (at the front) the fish is a and in register five it's a .

The identified men are as follows:
In , the first man in the first boat is described as: "The overseer of the linen, Anti", whilst the man in the centre of the second boat, who wears a lotus neck garland, is "The judge and scribe, Nikauisesi". Between these two boats an inscription describes the scene as: "Bringing the poultry".
In , the man in the centre of the first boat is designated as:"The administrator of an estate, Iby", whilst the man behind him is: "The overseer of fishermen and fowlers, Hesa". The three men in the second boat are identified in the text as follows: "The ka-servant, Id", "The scribe and attendant of the palace, Nikauisesi" and "The ka-servant, Idy".

Here there are two registers reserved for the care of animals (see right-hand side of ) and the for detail.

 The upper register  shows bags, containers, jars perhaps of milk, stands and folded mats, usually associated with herdsmen.

 The lower register  depicts three oxen tethered by three herdsman. The cattle are labelled as "young oxen, long-horned", the three leading hieroglyphs of the middle one is now lost. The men sit on the ground facing the animals which are held by tethers attached to collars and the lower jaws. Each man places one hand into the animal's mouth, perhaps force feeding it with some kind of nourishment from a container which is placed on the floor in front of him. Alternatively the container may have held water for the animal to drink.

See a of most of this wall.
As in many other mastabas, this one has a scene of fowling in the marshlands and fully occupies the east wall. Nikauisesi is depicted in a large papyrus boat with a wooden deck, providing better footing and distribution of his weight on the vessel. He wears a broad collar, a necklace with an amulet and a short pleated sporting kilt. In one hand he holds some decoy birds, of which very little has survived. In the other, now completely lost, he must have held a throwing-stick.
Beneath the craft, the details of the water were probably produced in paint, which is now mostly lost. It cannot be determined whether fish and aquatic animals were represented in it. Like the the craft of the south wall, under them can be seen weeds floating on the water, however only at the rear. Among these can be seen a frog, a butterfly and a dragonfly. It now difficult to see the three creatures (see )

The fowling takes place in a papyrus thicket depicted in front of the tomb owner's boat. This was all produced in painted raised relief, but much of the paint has now disappeared. What remains of the top of the thicket ends (on the left) in three rows of open umbels, above which birds are flying, but of these birds, only a hoopoe can be identified with certainty. All three surviving birds face towards the right.
Below this upper border, only the papyrus stems and umbels, or even just parts of them, are represented. These are ones upon which birds are perched or their nests rest, or on which animals climb. As already mentioned, these were produced in raised relief. Any background colour has been lost, possibly taking with it the bulk of papyrus stems. These may have been painted on to the background in order to be less intrusive, or perhaps they were never represented in order to prevent the scene from becoming too crowded. Most of the colour which has survived is at the bottom of the area and includes the figures of men in a small craft (this is described in detail later) and the one at the front of Nikauisesi's craft. The lower positioned birds still retain some paint, but above they are becoming less distinguishable.

Where possible, in the description below, the Latin names have been given in brackets.
Four animals, two common genets (related to the cat family - Genetta Genetta) and two Egyptian Mongooses (Herpestes ichneumon) have climbed the stems and snatched birds or fledglings. At top left is depicted a partly damaged bird and its nest, below which an Egyptian goose (Alopochen aegypticus) is sitting on the eggs in its nest. To the right, a pair of pied kingfishers (Ceryle rudus) attack an Egyptian mongoose which has reached their nest and caught one of the fledglings. Further to the right two damaged herons (Ardea sp.) are also defending their nest against a common genet, beside which, standing on one leg, is what appears to be a lapwing chick (Vanellus vanellus). Starting at the left again, is an large image of a butterfly, next to which a goose is trying, unsuccessfully, to save one of its young birds from the mouth of a common ganet. Two more flying insects are found to the right of the bird. Below this group are two nests, each with a bird sitting on their eggs. The first is probably a purple gallinule (Porphyrio porphyrio) and the second is a glossy ibis (Plegadis falcinellus). Up to the right (if you are now lost, look almost top right) is an Egyptian goose sitting on eggs, whilst below it a similar bird is attacking an Egyptian mongoose which has already caught yet another of the same. To the right of this group is apparently a purple gallinule (Porphyrio porphyrio) standing on a papyrus umbel, flapping its wings and possibly about to take flight. At centre bottom is a heron resting on an umbel.
Amongst all this action are, in total, three butterflies and three dragonflies hovering in the air. Much of the finer detail has either been lost over time or only is of a mediocre quality. However, despite the quality, the artist has shown good knowledge of the characteristic features of the creatures he produced, but most of the original details were rendered in paint rather than in relief.

In front of the main craft, on which Nikauisesi stands, and facing it is another smaller one also made of papyrus. At the stern is a man propelling the boat by use of a long pole. In the centre is a seated man who holds a fishing line in one hand and a club in the other. To either side of him stand two men wearing kilts. The one at the front of the craft holds three geese in one hand and a crane in the other and is identified by the text above and behind his head, as "The judge, keeper of documents, the scribe of the phyle and ka-servant, Nimaatsed". The rear most of the two standing men is described in the horizontal text above him as "The overseer of the linen, Anti". He holds two geese, which have retained a reasonable amount of their blue colour, in one hand and a lotus flower in the other. The skin colour and black hair colour of these four men has survived well.

The absence of the Nikauisesi's wife in this scene is most unusual (see page 1 under 'His wife').
However, he is accompanied by a number of family members and retainers shown in the boat or in registers in front and behind him. Many of these carry the throwing-sticks necessary for the activities of journey. All wear short, projecting kilts, whilst his two sons wear sashes across their chest and are not carrying birds or throwing-sticks. The sash of the son between his legs (the front-most of the two figures) is difficult to see because of it's skin-tone colour, it passes under his broad blue necklace (see ). However, the upper one facing in the same direction but in front of him, carries a small papyrus roll in his left hand.

All the men are identified by names and titles.

Thus in front of the deceased are the following individuals:
At the top, very small and almost invisible, is "The attendant, Meny".
The next two are:
"The judge and superintendent of scribes, Hemgi, (left),
"His son, his beloved, the senior lector priest, Meryisesi".
At the bottom, left to right, are:
"The judge and scribe, Iaib",
"The judge and scribe, Mehu",
"The judge and scribe, Nikauisesi", somewhat higher up the wall than the other two.

Behind the large figure of Nikauisesi, men were shown in two superimposed registers. The feet of three men are preserved in the upper registers, whilst two men appear in the lower register (left to right) identified as: "The judge and superintendent of scribes, Mesi" and "The judge and superintendent of scribes, Niankhkhnum".

Represented between the tomb owner's legs are two men: on the left is "… Nikauisesi (?) ", probably the son of the deceased, and "The sole companion, Mesi". Their figures are most probably later additions to the decoration of this wall, because unlike the other figures, that of the first man is poorly executed in incised relief, rather unfinished relief, while that of the second man is only painted. It is likely that these men, the first of whom may have been Nikauisesi's eldest son, took charge of his burial and were responsible for the later inscription in black ink recording its date immediately beneath their figures. The inscription reads: "The eleventh year, first month of the inundation season, day 20. Burial in the necropolis of the hereditary prince, the treasurer of the king of Lower Egypt, Nikauisesi". This dating information has been discussed on page 1.

At the extreme left of this wall, forming the eastern recess in which the doorway between chambers I and V opens, are depicted (in paint only) four (originally five) standing men in superposed registers. Three of these are reasonably well preserved and are wearing shoulder-length wigs and short, projecting kilts and have their hands by their sides. The labels identifying two of them are visible and read as follows: "The seal bearer and ka-servant, Ankh", and "The ka-servant, Shepses".

This wall includes, at its eastern (right) side, the entry into chamber V. The main area, to the left, includes a large image of the deceased accompanied by his son. Above the doorway and extending slightly beyond it, are two registers of farming scenes, birds and cattle. The whole area of the wall has lost much detail, making the texts difficult to read. But these were well recorded by Naguib Kanawati (see the line drawing opposite).

The large figure of the tomb owner wears a shoulder-length wig, a beard, a collar, a long necklace with an amulet, bracelets and a projecting kilt. He dominates the space on this wall, which is directly opposite the entrance doorway. He holds a long staff in his left hand and his sceptre of power in the other. At the top of the wall, Above him, he is identified in six vertical columns of text and a horizontal line below them. These read (from left to right, then the line) : "The hereditary prince, the count, the sole companion, the lector priest, | the treasurer of the king of Lower Egypt, the overseer of Upper Egypt, the overseer of the two workshops, | the overseer of all the works of the king, the honoured one. | The chief lector priest, the sole companion, the overseer of the two houses of gold. | The honoured one, before Osiris, lord of Abydos. | The honoured one before Anubis, lord of burial. | The treasurer of the king of Lower Egypt, the sole companion, Nikauisesi".

A much smaller figure, that of Nikauisesi's son, stands in front of his father's legs. He wears a shoulder-length wig, a collar, a sash and a projecting kilt. With one hand holds a folded cloth and the other grasps his father's staff. The text above him, which is written in very small hieroglyphs in seven lines, identifies him as: "His eldest son, his beloved, the sole companion, the senior lector priest, he who is privy to the secrets of the house of morning, Meryisesi".

At the top of the wall, above the entry between this chamber and chamber V, the scene is described by the vertical column of text directly in front of Nikauisesi, as: "Viewing the feeding on grain by the cranes and the withdrawing of milk, for the treasurer of the king of Lower Egypt, Nikauisesi".

"Feeding on grain by the r-geese and the Trp-geese", This shows two geese on the main register and three geese on a sub-register above them. These upper ones are also described as "Tr-goose" and "Trp-goose". All five are feeding on the grain scattered on the ground. In the second theme, a man is surrounded by six cranes. He carries a sack of grain, whilst throwing some of its contents on to the ground. The inscriptions above the scene reads: "Throwing down beneath them, the grain for the cranes" and "feeding, by the cranes".
The bottom register should probably be viewed from right to left. On the right, a balding herdsman carries in one hand some fodder and in the other a stick resting over his shoulder, from which hangs a sack. He follows three cattle. One of them faces in the opposite direction to the others and curiously mounts the back of a cow from the side. The text above the scene states: "Coming out from the marshes to the land". On the left, in front of the previous group, a cow is handled by two kneeling men under the supervision of another balding man, an overseer who wears the traditional kilt for his profession and leans on his staff. One of the men places his arm around the cow's neck and holds a vessel close to its mouth, perhaps encouraging it to drink. The second man is busy milking the cow, collecting the milk in a large container. The text above this scenes states: "Drawing the milk of the gracious cow".

The decoration of this wall extends into the west thickness of the entrance recess and at its northern end, the entry to chamber II, above which is the seated figure of Nikauisesi overlooking the scenes of the manufacture of bread and beer, portrayed in the five registers of the main southern section of the wall. The upper portion of the wall is missing, as is also a large section of the left-hand area, down to the level of the top of the doorway.

Nikauisesi sits in a chair having four lion's legs. He wears a broad collar, bracelets and, although now lost, he probably had a shoulder length wig. He holds a sceptre in an upright position in the left hand whilst his raised right hand may have held a perfume jar close to his nose, which, along with his whole head, is now missing. A vertical column of inscription, at the left hand edge of the scene, describes the location of the activities he is watching. It reads: "The storehouse of the funerary estate of the hereditary prince, Nikauisesi".

A small figure faces him in a sub-register in front of his legs. This man wears a shoulder-length wig, a broad collar and a projecting, short kilt and between his hands he holds a censer. He is identified in the text above him as "His eldest son, his beloved, the sole companion, Nikauisesi".

Under the chair is a man with a chest deformity (see ). He is labelled as "The seal bearer, Ityi". One of his hands supports a box against his shoulder, whilst with his other hand he holds the leash of a dog resting on its hind quarters in front of him.

Behind the chair is a man described as "The seal bearer of the books, Mehu". On his head he carries a monkey, his right hand holding a leash attached to the monkey's collar. The animal is shown eating some kind of fruit. Mehu and the monkey appear to be later additions and unlike the rest of the figures of the scene, which are in raised relief, these figures are incised and the base line of this whole scene had to be lowered at this right-hand end in order to make room for Mehu's feet. This can be seen in the , appearing to slope from left to right in comparison with the top of the doorway.

Beneath Mehu, in this narrow wall section, between the doorway and the north wall, are painted three standing male figures in superposed registers (see ). They wear long wigs, pleated kilts and each is designated as "ka-servant".

The wall opposite the tomb owner was presumably divided, like the south wall, into five registers, the uppermost one of which is now completely missing. The remaining four registers are occupied by scenes showing the making of bread and beer, all of which are probably to be read from the bottom register upwards.

At the centre of the scene sit two scribes in two superposed sub-registers, with full scribal equipment and in the process of recording the activities. The one in the upper sub-register, who rests his equipment of a large box, is identified as "The keeper of documents, the scribe of the phyle, Sedi", and the one below him, who uses a large box as a support, probably containing other papyrus scrolls, is "The judge and superintendent of scribes, Nikauisesi" (this must be the son).
Seated behind each of the scribes are two men holding or inspecting loaves of bread and jars, presumably of beer.
In front of the scribes (in the single register) stand two men. The first, identified as "The overseer of the storehouse of HT (A)-bread", is shown placing a loaf of bread into a container. The second, having the title "The overseer of the storehouse of beer", is pouring beer from a jar into a container.
Finally, behind them, stands a man described as "The crier of the granary", who is most probably calling out, in a loud voice, the amounts of bread and beer for the scribes to record.

The second register from the bottom (see the image above) shows the issuing of grain from the granaries and is labelled "The recording of that which comes out of the granary containing pxA-grain, the granary containing Lower Egyptian grain and the granary containing…".
In the left half of the register six silos are depicted, which suggests two for each of the three types of grain.
To the right of these, two men are bending and filling their measures with the grain. The first is described as "The director of grain-measurers, Nianti", however the second man is simply named "Qar", with no indication of his title. To the right are two scribes in the process of recording, one named "Hesiankhti" and the other "Ihy". Each has his ink pad hanging from his belt. They are looking away from the measurers, probably to face the tomb owner. However, they are assisted again by a crier, named "Qednes", who reports the measurements to them.

The next two registers have a large section missing from the centre.

 The third register, unfortunately incompletely preserved, presumably records the manufacturing of bread and beer. On the right-hand side, the upper half of the register projects over the top corner of the doorway to chamber II. Captioned as "Mixing and straining every good thing… Nikauisesi", it shows people pouring liquid into the dough, kneading, making loaves, baking, etc.
The first man at the right, standing beside a low table with loaves, with a very small seated figure in front of that, faces the tomb owner and carries more loaves on a tray. The inscription in front of him reads: "For the ka of Nikauisesi".
At the far left (see the ), the register is subdivided, with a kneeling man preparing the loaves on the upper sub-register, above a seated man tending the oven whose partly preserved text reads: "… heating".

 The fourth register depicts sealed jars (see top centre of for the only recognisable remaining section).
To the right is a man bending in front of the tomb owner and holding a bowl in his hand. The inscription below his arm reads: "Tasting the beer". Behind him the register is divided in two and part of an inscription remaining in the lower half reads: "Requirement of 200…".
Only a small piece of the left side has survived, which contains a few upright vessels.