Responses
i think it is "a gangster became a highschooler" but i am not sure ! ( https://www.mangago.me/read-manga/a_gangster_became_a_high_schooler/) originally it is a bl, they probably changed it for the series (i've not seen it though).
if this is not what u are looking for, i hope that you manage to find it!
You know the Korean series (High School Return of a Gangster)
I want the manhwa name cuz I can't find it