(revealed in later routes/true route): >!The facility is a psychological experiment testing Keisuke’s suppressed memories. The "Byakuya" is not what she seems. The white door’s taboo conceals a reality about the protagonist’s past and his relationship with Nemu, the most antagonistic heroine.!<

: Read a detailed summary of the true ending before playing if you’re unsure. But if you commit, go in blind and trust that the horror serves a narrative purpose – not all shock value is empty.

: Survival horror eroge. The protagonist’s morality erodes; the trials are designed to provoke disgust.