The Second-Dimensional Apocrypha

A forged tome connects his past life to his present one. Whether he was a ghostly father or a mad scientist in his previous life, Kuroki Tomoki knows only that in this life, his name is Kuroki Tomoki! He's just a somewhat chuunibyou boy.

Combat comes first, everyday life second. This is simply the story of a boy traveling through a world of anime and manga, then building a harem (or getting involved with guys). In truth, all he wants is to return to his own world and flirt with his beloved big sister.