I cant find the manhwa that I read months ago please help

Please help, I can't find the manhwa I read five months ago.
It was a bl, with the mc named smthing like leehan leewon, the ml is some rich probably soon to be CEO (I think I'm not sure), it has two smut scenes, has side stories, the ml asked mc if he's gay at the start, the family of ml warned mc coz ml isn't gay infact he's homophobic so it means mc is a very special person, the start is where the ml is working at the company where mc is also working, the mc has a nephew(the age gap isn't that big), when ml started the job, the workers didn't know that the ml was a part of the CHAIRMAN'S family. Also the ml isn't that close to his family.

Both ml and mc has blue hair


Please help me, I can't stop thinking about it. ╥﹏╥