I forgot about this manhwa but all I know is that it's about a guy who move in this place or in his Grama place I think to start an new life and he was disguising as a nerd but in truth he was handsome guy and was a kpop idol I think and he has a neighbor who also his classmate a girl who looks angry but was actually kind and talented in everything and her dad also looks like angry but is a florist
https://www.mangago.me/read-manga/your_smile_is_a_trap/
I think its this!!
guys can you find me this manhwa where the mc was transport into a bl novel I think and he is some kind of landlord to the MC's novel. the MC's novel have 2 kid brother and they're really poor. then the ml of the novel is some kind of CEO that mc helped because he was hurt in some alley then the ml became also interested to the mc guy and then mc guy became the cook of the CEO. I think the original character of mc guy in the novel is some bully or 2nd ml idk...
https://www.mangago.me/read-manga/i_became_the_lousy_side_top_official/