Sis-pai Heaven!

A young man discovers a hypnosis app that allows him to manipulate his little sister's behavior. He uses it to turn her into a willing partner for his sexual desires, leading to a series of increasingly explicit encounters. The story follows his attempts to fulfill his fantasies with her, from a Christmas Eve rendezvous to a special swimming lesson.

As the hypnosis takes hold, his sister becomes more compliant and eager, blurring the lines between reality and manipulation. The protagonist's actions escalate, involving other family members and situations that test the boundaries of their relationship. The narrative explores the consequences of using such power over someone close.