Originally released back in October 2015 in North America and Europe by XSEED for the PlayStation Vita, the survival horror title from Team GrisGris and 5pb. acts as the sequel to Corpse Party: Book of Shadows and the conclusion of the Heavenly Host Elementary School saga which began with the original Corpse Party.
Here is the full description provided by the ESRB:
This is a survival-horror adventure game in which players help students escape a haunted school. From an over-head perspective, players traverse environments, avoid monsters, and interact with various objects and characters. Cutscenes sometimes depict various acts of violence: a man stabbing himself with a knife; a character crucified and burned. Violence is also described in text (e.g., “She continued to hack at me, again and again. . . From behind me, I could hear the sound of blood gushing into the air from the gaping hole above my neck”).
Blood is frequently depicted near corpses and when characters are injured. During the course of the game, a handful of sequences depict characters whose nude bodies are partially obscured by lights, steam, and/or other body parts. Some sequences are accompanied by suggestive dialogue (e.g.,“Not that I’d expect you to be too turned on by these raisins o’mine,” “Hey, stop jiggling them,” “And where do you think you’re touching?! Those are my boobs!”). The words “f**k” and “sh*t” are heard in dialogue.