Isekai no Maou-sama, Dungeon Haishin Shoujo ni Tensei Suru ~Shijou Saikyou no Daimaou ni Yoru Juuryou Haishin no Kiroku~

魔界最強の大魔王だったルナは、ついに勇者に討たれた――はずだった。だが次に目を覚ますと、そこはダンジョン配信が大流行するまったく別の世界。しかもルナは、人間の少女の姿に転生していた！ 襲い来る巨大モンスターを圧倒的な力で瞬殺すると、その規格外の強さと可憐なルックスから、ルナは一躍注目の的に。そこから彼女は、大人気配信者への道を駆け上がっていくことになり――!?
Luna, once the strongest Great Demon King in the demon world, was finally defeated by a hero—or so it seemed. When she awakens, she finds herself reincarnated in a completely different world where dungeon streaming has become wildly popular. Even more surprisingly, she has been reincarnated as a human girl. After instantly defeating gigantic monsters with overwhelming power, Luna attracts massive attention thanks to her extraordinary strength and adorable appearance. From there, she begins her rise to becoming a hugely popular streamer.