Perhaps this wasn't much better...
Holebun's Guts is the world found from Sandy Showroom via the knife mini-event (interacting with the colorful vaguely bunny-like NPC after interacting with the knife.)
It is a corridor. The floor appears to be internal organs/blood in which Kubotsuki finds himself partially submerged in. At the dark walls, there are twinkling stars and pink, faceless humans with flaming heads. Nearly all of the fire is blue, with the exception of the human at the end, with an orange colored fire and a hole in his head.
The corridor's end is an opening that leads to the Fresh Forest's waterfall.