A delinquent who wants isolation gets a girl claiming to be his knight from a past life, then a classmate dies, and suddenly you're locked into a two-episode sprint where every answer costs you another question. The twist isn't a gotcha moment tacked on at the end; it rewires what you thought you were watching the entire time. This hits because it respects your intelligence enough to plant the truth in plain sight, then makes you hate yourself for not seeing it sooner.

Juuzawa Juu is a delinquent high schooler who prefers to keep to himself and sees little point in making friends. Then Ochibana Ame approaches him, insisting the two were bound together in a previous life and that she wants to serve him as his knight. Juu writes her off as delusional and tries to keep his distance. When a classmate is murdered, he decides to keep Ame near instead, suspecting she may be the killer. As they work together to find the culprit, her sharp mind and abilities turn out to be a real asset. The two-episode OVA mixes horror, mystery and thriller elements.