PSH plays a similar kickass role in Sisyphus: The Myth. If you like her character here, then I recommend adding Sisyphus to your list.

The plot of Densetsu no Head Sho is very similar to Boyhood. However, in Boyhood it is a case of mistaken identity.

Similar to the protagonist in this movie, the protagonist in the drama tries to take revenge before completely losing his memories.

The FL is also frustrated and annoyed at the ML to the point she wants him to die. Her plan to kill him fails and the ML ends up getting amnesia. So she starts pretending that they are in a loving relationship. In the end they fall in love for real.

The ML's father is also a serial killer. The ML falls in love with a girl, and he has to protect her from his father.

This drama also has a character like Soo Min who interferes in the main couple's relationship. She also does aegyo, but she isn't really all that innocent.

Daily Dose of Sunshine is another healing drama that challenges myths about mental health. The main character also experiences depression.