My Nasty Sister

Tatsuya has a younger sister who everyone else thinks is adorable. But behind closed doors, their relationship has grown cold and distant over the years. As time passes, Tatsuya finds himself struggling with unwanted sexual feelings toward her.

The tension between brother and sister escalates as Tatsuya's desires clash with the reality of their strained bond. Unable to ignore his growing urges, he must confront the complicated emotions that threaten to destroy what little remains of their family connection.