Yaoi title ?!!

Actually I forgot its name it was a yaoi Japanese manga *it was an office romance, I read it on mangago so the story goes as (the MC was having a bit of difficult time accepting MLs feeling and there's MCs office coworker who was bit promiscuous manipulating him against the ML that he should not accept or love him as LOVE is not worth it , but then he actually falls for the 2nd ML who was MCs friend (kinda rich I guess) who himself was rejected by MC. It was kind of spin off/side story i don't remember very well starring coworker×2nd ML coworker gets character development and start to chase 2nd ML to get on his good side[2nd ML kind of becomes the CEO of their company] and he really dislike the coworker who is now pursuing him but coworker actually really genuinely likes him and want to know him and also changes his appearance *dye at that time it was ongoing maybe it have been completed by now his hair if anyone knows please I'll appreciate it, if someone needs more details I can give it about the storyline and setting but I just want to know the name so bad ╥﹏╥