Was literally about to recommend these 2 lol such masterpieces!
I recommend
https://www.mangago.me/read-manga/raising_villains_the_right_way/ (Note: Beware as the author decided that the mc's adopted KIDSSS(only the girls) have developed romantic interest on the mc. Unfortunately, a drop for me but it was so good. If u can somehow ignore this bs, maybe you'd like it)
https://www.mangago.me/read-manga/i_was_possessed_but_it_became_a_ghost_story/ (literally so sooo good)
https://www.mangago.me/read-manga/trash_of_the_count_s_family/ (this is a classic. But idk if this rlly counts, since the misunderstanding part gets resolved pretty quickly imo)
OH MY GOD I FORGOT TO PUT GHOST STORY ITS A MASTERPIECE!! GOOD CATCH!(btw you have amazing taste)
Thank you~!! And u too!! Also, u mentioning "ghost story" reminded me of
https://www.mangago.me/read-manga/got_dropped_into_a_ghost_story_still_gotta_work_novel/ (note, the misunderstanding part is that they think the mc is this nonchalant cool dude. But he's actually rlly expressive and scared at times LOL still, it ain't a lie that he's smart!)
Any Story where there’s a misunderstanding about the MC Like “ I’m Not That Kind of Talent” or “the painter who draw dungeons”