She Is the One (2021)

The exchanging part is quite similar to this drama ' she is the one' . But in that drama the elder sister had an accident that's why they younger one changed her identity into her elder sister to help her. I haven't watched this yet so i won't comment abt this drama. I hope this review may help you.

Based off the synopsis in both dramas the groom marries a girl who wasn't their "actual" bride, but love persists and they fall in love.

Contract marriages
Rich CEO male leads
Spunky female leads
Same devil and angel animated characters
Both are fake relationships which become real
Excellent skinship with real kisses
Feel good romantic comedies

-Same concept. Twin Sisters identity swap.
-Younger sister assume the identity of talented older sister while older sister mysteriously goes missing.
-Younger sister fell in love with ML

Only up to ep 5. But both these dramas have the ML manipulating the situation and deceiving the FL in the guise of romance. She is the One is less objectionable regarding the deception. Very similar feel though.

- Twin sisters switched (one sister runs away and someone makes the other sister take her place)
- Twin sisters are from a divorced family (one follows mom, the other follows dad)
- Twin sisters are opposite personalities (the one who runs away is more reserved, the one who takes her place is more sporty)
- ML notices that something is off with FL and discovers the switch himself

The premise of both shows are the same. A twin sister has to take the place of the other sister while keeping it a secret from the male lead.

Married because of business (contract marriage) and then naturally fell in love .
Both ML's are strong and ambitious
Both FL's are cute , pretty and want to live a care free life
they both are cute , funny couples .

I've only seen up to Ep. 6 but the plot is story and characters are quite similar. FL is forced to marry cold rich guy. ML falls in love with FL first. ML tries everything to "control" or deceive FL.

Both are chinese dramas.In both dramas there are twins. They both have twins exchange identity. In nothing but you it is because of an accident. In she is the one it is because sister ran off with her love.

Both require a suspension of disbelief. Both have female leads filling in for a sister in a way that makes no sense. The Charming Step Mom was a little more fun. She's the One also gives vaguely Well Intended Love vibes too.

Plots are not similar,but in both dramas Male lead falls for the female leads from the very first episode and try everything to pursue her.If you liked any of them you can try the other one
Although "Since I met" you is so much better than "She is the one."