Talk:Light Novel Volume 2/@comment-125.212.121.246-20160208161503

Later on, we see an adult Haruhiko fight in a war against Phantoms. Unable to kill the Phantom Rupa (girl on left), she goes on to eradicate two-thirds of the human population. What's left of humanity lives in the underground city of Gehenna. Haruhiko blames himself for the apocalypse with Mai, Reina, and others as his mental supports. As his friends fall one by one, Haruhiko swears that even if he gives his soul to the devil, he will eradicate the Phantoms. As he is swallowed by the darkness of revenge, Haruhiko rises to use a forbidden ability in hopes to finally end the struggle.

http://www.kyotoanimation.co.jp/books/phantom/story/