-In both the FL saves the ML's life but he mistakes somebody else for her.
-Both have a successful ML who helps the FL realize her dreams.
-Both have the MCs living together from early episodes.
-Both revolve around the entertainment business
-In both the dramas the best friend of the ML falls for the FL's best friend (secondary couple with a mostly separate storyline)
-love square situations in both.

The FL gets hired by the ML's family to be his caretaker and make him fall in love again. The ML's family is supportive of the FL and hostile of his ex. The main leads have a slow burn hate to love relationship development. ML's ex comes back into the picture as well creating a love triangle.

Although the settings might be a bit different both the lakorns have an arranged marriage angle where the male lead is set to marry the female leads sister but through a twist of fate (where the sister runs away) the FL ends up being a replacement bride.