Touji Kijima

Hoshino Kazuki's best friend in middle school. [Spoiler] He used to go out with Yanagi Nana. However, since she was too needy, he broke up with her. He disappeared at the same time as Nana. [/Spoiler] [Spoiler] When "O" appears as Nana, during the "Game of Idleness" he reveals to Daiya that Touji and Nana are not dead, as Kazuki believed, but are inside of Otonashi Maria's box, instead. [/Spoiler]