Hanaori-san wa Tensei Shite mo Kenka ga Shitai

Narukami Ryusei lives a reclusive life as a NEET, spending most of his time playing video games. Unbeknownst to others, he was once a powerful demon king in a different world. Now reborn, he intends to enjoy this life freely. However, he is not the only one who has returned to this world—his former enemy, the hero who defeated him, has also been reincarnated. She is now a high school girl. Ryusei must now navigate life alongside the one who once opposed him, raising the question of whether he will find himself in conflict once more.