Noona romance. The FL is an older career woman who has had several bad relationships / little success with love. The ML fell for the FL when he was a kid and reunites with her years later, when he moves in with her.

Similar to the FL's appreciation for LZA's hair when it was long and fluffy (which earned him the nickname Flower Fairy), the FL in Kimi Wa Petto loves the ML's soft fluffy hair. His hair and eyes remind her of her childhood pet Momo, which leads her to end up allowing him to live with her as her "pet".

The MLs in both dramas are younger, artsy (Takeshi/Momo is a dancer similar to LZA's role as a singer and musician), affectionate towards the FL / make an effort to comfort her when she comes home at the end of the day, and puppy-like. The parents of both MLs disapprove of their choice to pursue a career in the arts.

Both dramas have excellent cuddles.

Noona Romance. The FL is cold and threw herself into her work after being left hanging in her last romance. The ML is kind, energetic, talented and thoughtful, but he switched career paths and his parents disapprove. The ML ends up living next to the FL and chases her first while the FL tries to keep distance between them because of their age difference.

Noona romance. The FL is a few years older than the ML. Their mothers were acquainted and the FL looked after the ML when she was a kid. The ML developed a crush on the FL before moving abroad where he grew up and later established a successful career as a DJ. When he returns to Korea he leverages the parental connection in order to be able to stay in the FL's loft, even though she still sees him as the little kid she resented because she had to look after him. While the FL is cold, jaded in love, and a workaholic, the ML is affectionate and persistent.

Both are about best friends who have known each other for years who can be themselves around each other. They know each other well, but they're bad at recognizing their own feelings and deny them out of fear of losing the other person.

Both are dramas about friends who have known each other for years and are very comfortable with each other, but who have been dating other people and are really bad at recognizing, accepting, and being open about their feelings.

Both are short and light dramas about a boy and a girl who are friends and have known each other for years, and who are comfortable moving in with each other when they need a place to stay. In both dramas the FL has recently broken up with her boyfriend, and in both dramas the ML is good at looking after and cheering up the FL in his own way. In both dramas the leads try to ignore / deny their growing feelings for each other.