After the fight with Takeshi, Matsuri gets injured and Yorito tries to protect her by bringing her back to his home. After she wakes up, she tries to thank him by making him a meal, but due to her limited knowledge of the modern world, it does not work out. That night, Matsuri intended to leave Yorito's house without him knowing, but stayed to look at the sky painted on the ceiling of Yorito's room.

Yorito and Mana search for Matsuri after she disappears on the night she kissed Yorito. Almost a month passes from Matsuri's disappearance, and Yorito has almost given up hope on her return. On a date out with Aono, Yorito accidentally runs into Matsuri again inside a convenience store and gives chase, leaving Aono alone. Yorito catches up to her to find out she has been living with Mayuko in an abandoned building. Aono is left wandering in the rain alone and is angered by Yorito's desire to be with Matsuri. Back in the abandoned building, Matsuri collapses after being stabbed by a piece of glass by a seemingly mentally vacant/unconscious Yorito who seems to be controlled by Aono.

Matsuri tries to forcefully stab Aono with her sword, but Aono moves out of the way in time; she still manages to get a wound on her shoulder. While Aono runs away, Yorito is left with an arm missing and he slowly becomes weaker since Aono is losing her Yaka powers. Matsuri tells Yorito to not intervene and goes after Aono. During the fight, Matsuri loses her sword, and Aono takes it up to shove it into Matsuri, but Yorito, not listening to Matsuri's heeding words, intervenes and he is impaled on the sword. Yorito then disappears in a flurry of paper followed by Aono's shrill cries. Matsuri does not hesitate this time to stab Aono and after the sun rises, Matsuri also disappears, but Aono is now human. One year later Aono comes back, and no one but she herself remembers who she is, or any of the incidents that happened. Aono meets with Mana and Koyori and they become friends again.