Himitsu no Tobira

Nanako desperately tries to escape from Rei, but fails. Rei attempts to stab Nanako several times before regaining her senses and breaking down in tears when she realizes what she is doing. They return to Rei's apartment and make peace. Later, Nanako tries to throw away Rei's drugs, but she catches her and angrily orders her to leave. Nanako goes to the beach and cries, but Rei finds and forgives her. Rei happily returns to school the next day despite the first day of midterms.