Gangster looking man is actually so shy and sweet. Dainty woman is actually ML personified. They're meant to be but their exes team up to ruin their lives and break them apart but nothing is stronger than their love and healthy communication. (side note: the female villainess has such a tragic story, and her attitude is so infantile that if I was gonna isekai into a novel as a villainess it would probably be this one since before messing with the MC's she has a pretty good shot at being a sympathetic side character like the fiancé who becomes bffs with the FL)
My Cute Beast!