The Vomitgirl Area is a region released in version 0.19. It is accessed through a maid in the third room of the Hotel's left wing.
This area plays a rather disturbing bgm, and is full of giant white female figures as well as the hospital girls and dead maids that can be found in a bathroom stall of Sweet Sugar. The maid who transports Sabitsuki here can be found among the maze to transport her back to a bathroom stall; another transport point is a white hole in the ground which will lead to the Sugar Hall.
The Vomitgirl Area is named for a file in .flow's Picture folder labeled "vomitgirl." To enable travel to this area, you must first eat ten 300 yen meals at the sugar hole; afterwards, the maid might transport you here. If she does not teleport you there, she will only fill the screen with a close-up picture of herself. It appears if that killing the NPC blocking the left bathroom at the end of the hall and accessing the bathroom stall full of dead girls improves the chance.
This area plays up the theme of prostitution that Sweet Sugar introduced in earlier versions.