A-Kun (17) No Sensou - I, The Tycoon?
Other titles :
17 I, THE TYCOON?, えーくんじゅうななさいのせんそう, Ａ君（１７）の戦争, Ａ君（１７）の戦争 －Ｉ， ＴＨＥ ＴＹＣＯＯＮ？, A君的战争, A-kun (17) no Sensou
Author(s) :Gouya Daisuke
Onodera Goushi is an highschooler 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?!?!