Kill Lover (2025)

Both ML has a similar vibe, the relationship dinamics is really similar.
Plot is a little bit different here.

different in terms of plot but similar in terms of chemistry between leads and the mysterious and handsome MLs

Both have similar vibes and intros, both MLs are seemingly unpredictable and calculating with a hidden plan. Both FLs pose as someone close to them (fiancée vs. sister) to enter the family household. Both couples start off antagonistic, and have a lot of chemistry from the beginning.