A little 50/50 on this guess but I think I know it.
Mc DOESN’T have white hair in this one but fits all the other descriptions.
He proves himself worthy and becomes and official possible heir to the family and was in his previous life in a group where a witch had purple hair.
It’s called “ I Became the Genius Bastard of a Noble Dark Clan” on another web, idk if it has another name. Rn I’m just letting it marinate.
Hope this is the one ur looking for
No sorry, thank you tho! the MC has white hair and golden eyes:)
I guess they’re just similar. Gl on ur journey to finding the one though
help i lost the name of the manhwa ive been looking for. Its a historical action manhwa with a white haired MC, he was reincarnated and was born into a poor descendant but then climbed his way up. Basically got adopted by his uncle bcs he was strong and was fit to be the next lord or sm like that. Also he was part of this squad and i remember that there was a witch that was on purple or smth bruhhhhhh help genuinely i wanna reread that again and its not ob my list.