@ TheMangaKing20675
I actually disliked Black Healer, for one very obnoxious reason. I originally gave it a try because female protagonists in Isekai settings are especially uncommon and I thought it'd be a nice change of pace, but grew increasingly frustrated with her blatant breaking the rules of the world she was in. She was the only person in the world to have game menus, and her method of using magic was something no one else in the world was capable of. Rudeus in Mushoku Tensei becomes powerful as fuck early on, and by the end of the final volume of the novel, is essentially the single most powerful magician on the planet (That we, the viewers, are aware of, anyway). Even so, he always plays by the rules of the world around him. Other Isekai protagonists, such as Rimuru, Rou, Hajime(Arifureta), Satou (Death March), Lute (Gun-Ota), are all varying levels of good to bad characters, with varying levels of OP-ness, but aside from Black Healer and maybe Konjiki no Wordmaster's Hiiro (His word magic is completely unique to him and, though it follows basic rules such as MP usage, is absurdly flexible, basically a "the only limit is Hiiro's creativity and imagination" type of power), none of them blatantly break the rules of the world around them. They are all powerful within the rules of the world they live in. That really bugged me for Black Healer, so I stopped reading it.