Hanaori-san wa Tensei Shite mo Kenka ga Shitai

Once the terrifying Demon King, Narukami Ryusei now spends his days holed up at home playing video games. Life is peaceful — until Hanaori Mitya, a high school girl and the reincarnation of the hero who defeated him, suddenly crashes back into his world. Neither of them is prepared for what happens next. Former enemies, awkward feelings, and a fate that clearly wants them together collide in this sweet, smile-inducing modern reincarnation romantic comedy! ___ - (https://twitter.com/orehaji_mo2)