Perfect Her

Both involve the FL swapping bodies with a completely different woman following an accident, then taking over that woman's richer or more glamorous life while the original woman in the FL's original body is in a coma. The ML then starts falling in love with the FL who he didn't like before.

Both have the similar plot: FL witnesses her husband cheating on her, dies that day and is reborn as the mistress, and decides to take revenge in this new body.