In'youchuu: Chronicles of Demon Exorcism at the Violation Academy

A supernatural visual novel following the demon hunter company "Black Cat Brigade" as they investigate a haunted private school in the mountains. When their colleague Takeru disappears during a routine case, her teammates Mikoto and Yamato go undercover as students to find her. The investigation uncovers disturbing secrets lurking beneath the school's peaceful facade, involving corruption, mysterious forces, and supernatural threats. The game features multiple story branches, various endings, and mature content including sexual themes and graphic content.