The Insides (内) is an area that can be accessed by going through the mouth-like doorway in the Blood Maze. It is a single room which houses no effects.

By going through a small red entrance in the black shape on the right side of the room, Sabitsuki will arrive into the Flesh Walls world. The manhole leads to the Sewers.

There is no way to go back to the Blood Maze from this room.



  • The background picture of this room is called "red" in the game files.


  • It is possible that this area represents a horrid condition Sabitsuki has or had developed.
  • Considering that Sabitsuki has to go through a doorway that resembles an open mouth to reach this room, this area might represent the insides of a body.