異世界帰りの僕が100人斬りの勇者だなんてまだ誰にも知られていない (Associated Names)

After returning from another world, former hero Kyosuke Todo finds himself caught in a chaotic romantic comedy. In June of his freshman year of high school, Kyosuke was brutally attacked. While his consciousness wavered, he was summoned to the fantasy world of Alefgard as the Hero of Mankind, destined to defeat the Demon King. Told…