Me, a Genius? I Was Reborn into Another World and I Think They've Got the Wrong Idea! (Light Novel)

Kouki has found himself reborn, together with many of his past-life memories, in an alternate version of Japan. Every time Kouki uses his knowledge from his past life, it causes a new misunderstanding, and his ordinary life is gradually turning into an extraordinary life. Kouki can't help but go from one misunderstanding to another in this insane sci-fi comedy!!