Hibiki has a strong desire for younger men and longs to be taken by them. She initially resists older men, so she has her junior disciple, Ayako, handle the man for her. Being tied up by another woman brings intense embarrassment, and though confused, Hibiki realizes she becomes aroused no matter who binds her—making her shame even deeper. Though she usually takes a dominant, sadistic role, today she finds pleasure in being restrained and touched, enjoying the sensations more than expected. Gradually, her feelings begin to shift—maybe an older man isn't so bad after all.