Both dramas have revenge plot story where ML plan to get revenge and use the FL as his revenge tools. But the ML has different reason to get revenge. Both of dramas have same story trope where ML lost and got memory lost because of accident. Both of FL fallen pregnant and kept the pregnancy after the ML's lost accident. The FL and ML met again after 5 years with the existent of their son. Both dramas have strong ML's character.

Both dramas have similar story trope where The ML get memory lost but with different reason. Both of ML is quite temperamental but changing softer and nicer when they were amnesia. Both of FL fallen pregnant with ML after the ML left (because of the amnesia). ML and FL met again after 5 years accidentally and the ML started to regain memory vaguely about the FL but the FL kept avoiding the ML. Both of FL kept denying the past relationship between her and ML and lied about their son existent.