With the conspiracy of Ayame Kajin (Kumiko Aso) and Natsune Minamoto (Kana Kita), Touya Minamoto (Akihisa Shiono) was arrested on suspicion of assault. It's all over... That's what she thought at the time. Suppressing her pain, Ayame began to throw away mementos of Touya from the room where they lived together. Just as she was about to erase all traces of him and start afresh, she received a call from Detective Kanehara (Urajinuno) saying "Touya has been released." Natsune had withdrawn the complaint because her husband was truly remorseful. "Why?" Ayame asked, and Natsune uttered something she never expected. "I killed someone." The "secret" from high school that bound Touya and Natsune together with a special bond was finally revealed...