Hanaori-san wa Tensei shitemo Kenka ga Shitai

Ryusei Narukami is a shut-in who spends his days playing games, but he carries an unbelievable past: in his previous life, he was a Demon King in another world. Reborn in modern Japan, he plans to enjoy a lazy existence far removed from heroes and wars. Then he meets Hanaori Meteor, a cute but fiercely combative high school girl, and recognizes her immediately as the hero who defeated him in that former life.

His old enemy has reincarnated into the same world, turning what should have been a peaceful second chance into a reunion between two people who know each other far too well. This time, the real question is not who wins their next fight, but what they become without the old roles that once defined them.