Circle Violation -Damaged Sister-

Synopsis

Tsubame Tachibana is an honor student serving as vice president of the student council at Kōrei Academy. She harbored secret feelings for student council president Tokitsugu Amakusa, but he confessed to her twin sister Sayuki instead, and they became lovers. For Tsubame, who had long harbored resentment toward Sayuki, this was nothing but humiliation. Consumed by jealousy, Tsubame plots to use her male classmates to violate Sayuki, but…