I'm looking for a novel, where mc got transmigrated with a system. The first arc of that novel was that mc transmigrated into a rebirth type of world where the fml of that world got reborn. The original world is that fml got reborn and started her revenge while falling in love with mc's host's male secretary. Mc's host is a gay ceo who was also in love with the male secretary but it was a secret love and he never made any move against him as he knows male secretary is straight. But Fml was a paranoid b*tch and set up mc's host just because she found out that he liked her boyfriend and ruined his life. Mc transmigrated into the gay ceo and reversed his fate. And when he was supposed to sleep with ml he switched with the system as he didn't want to do it with ml. But ml noticed that and stopped. So now I'm looking for that novel again as I can't find the title anymore.