Zegapain

Kyo Sogoru finds that he is the only one who can see Shizuno Misaki, a beautiful girl who invites him to play a game where he must save the world.

Kyo finds that strange things are happening in his world - like his friends disappearing from sight and Shizuno appearing only when he is alone. He agrees to continue helping her if she will appear in a film he and his friend, Ryoko Kaminagi, are filming.

As Kyo plays a game given to him by Student Council President Shima, he begins to question the reality he lives in.

May-Yu, May-Yen, and Lu Sheng are determined to save the corrupted Shanghai Server with help from Kyo and Shizuno. When the server is destroyed, Kyo discovers the truth behind what is reality and what is a dream.

Kyo convinces himself that Maihama is real and so are all his friends. However, in his increasing confusion, he fails to appear for battle when the Oceanus needs him most. The Celebrants must defend themselves against the enemy who appears at last - Abyss.

Kyo tries to prove that what he feels and experiences within his world are real, but instead becomes temperamental as he realizes that even his friends may be nothing more than illusions. When he tries to leave Maihama to affirm the reality of his world, Shizuno finally explains the truth. The Oceanus is joined by Chris and Arque Avenir.