Both are short length dramas in which the FL attempts to take revenge against her cheating husband with another man's aid. Both have evil mother in laws who hate the FL.
Both are mini dramas in which the FL suffers betrayal and set back, and then returns with a plot for revenge. Both FLs are assisted by a different man from their original boyfriend/husband.
Both are short length dramas in which the FL ,discovers a web of lies around not only her husband but everyone around her, and must form a plan of revenge and escape for herself.
Both have a similar vibe, with the FL, who is married with a young daughter, suspecting her husband and others in her life are manipulating her. She is aided by another man who has uncertain intentions of his own.
Both are minidramas in which the younger ML approaches the older FL romantically, all for the purpose of getting revenge as he blames her for the death of his family member.