They accidentally met in the library, but Moe Amatsuka seems to have struck a chord of love with the young man who, despite his gentle and shy appearance, has become infatuated with her. She is a schoolgirl with a beautiful and innocent face, yet her personality is quite bold, so she took the initiative to approach and get to know the young man when she saw him secretly looking at her and smiling. The two had their first dates together, but contrary to that innocent face, in private, Amatsuka revealed herself to be a promiscuous girl with perverse, sadomasochistic preferences, which left the naive young man no choice but to close his eyes and indulge in the strange joys that this new acquaintance brought.