Smart, gluttonous and an antisocial otaku, Mototsu Shiki, was attacked in a park one night while celebrating his 17th birthday. All of a sudden, he woke up in an another world. To be dragged into another world is an otaku's dream come true, and of course, he was overjoyed for this to happen. However, he is still unsure how he got into another world by just dying. He ventured the world he got transferred on while finding answers on mysteries to be solved and a resolution to go home. Until such time comes, his decision is yet unsure if he really wants to go back, stay, or do something more interesting.