A-kun (17) no Sensou - I, the Tycoon?(2007)

A-kun (17) no Sensou - I, the Tycoon?

Onodera Goushi is an high-schooler who isn't much noticed in other people's daily life, in a sense,his life feels like it would be the same if he wasn't around, then one day while returning from school he finds himself in a life-death situation and a strange girl named Honoka saves him by sending him in another world, he then gets sent to the "Demon Nation" where many non humans live and where he is able to meet the Mahou who is... an anime otaku?!