Miaka reads about the constellations of the four gods again and is again confused, but Aono Tomo distracts her by asking her to come to his house to study later. Tamahome’s master find him and releases him from the illusion he was under when he was thrown from the cliff. As Miaka and Tomo pass the library, Miaka feels like something important happened there and tries to figure it out, but Tomo distracts her with a promise of cake. Miaka discovers the cake was a lie and is distracted again by the library, which she can see from Tomo’s window. He distracts her by kissing her. When she is about to give herself to him, she is confused by something she cannot remember. She remembers going into the library with Yui and going into an old book. Tomo tells her that is was just a dream but she continues to remember what happened and breaks the illusion (but is still trapped in it). Tomo has to use all of his life force to keep Miaka trapped and Amiboshi uses this opportunity to break free. He gives his strength to Miaka using his flute. She stabs Tomo in the mark on his forehead using the lucky pencil he gave her. Shin (the shell Tomo used to create illusions and trap Miaka) breaks and Miaka reappears. Amiboshi protects Miaka from Shin, but is defeated. When Tomo is about to kill him Suboshi arrives and kills Tomo. Amiboshi offers Suboshi forgetfulness leaves so that they may live in peace together. Suboshi pretends to accept them, says he loves Yui, and forces the leaves back on Amiboshi. Suboshi attacks Miaka in the same manner in which he thinks Yui was.
何もかもが思い通りの世界で幸せに暮らす美朱は、青野（あおの）という少年に恋心を抱く。しかしその青野こそが氏宿の分身であったのだ。四神天地書のなかで起こった全ての記憶を失い、普通の生活をおくる美朱。だが、偶然目に入った「鬼」の文字に、たまたま立ち寄っただけの図書館に、なぜか心揺さぶられる。自分には忘れている事が、思い出さなければいけないことがあるはず……。美朱の中で、少しずつ記憶がよみがえっていく。自分がいるべき世界は、本当の想い人は……。
