Nikuen

The protagonist, after embarking on a new romantic journey with Aoi, finds themselves invited to her house for the first time. Upon arrival, they stumble upon a shocking scene: Aoi's mother being taken advantage of by an unfamiliar man. Despite this startling revelation, Aoi seems unfazed and leads the protagonist to her room. It is here that they discover the reason for their mother's apparent apathy - the mysterious man has used an app to hypnotize her. The following day, the protagonist is left reeling when their girlfriend becomes the man's latest victim...