Both "Cinderella at 2 AM" and "She Would Never Know" are about office romances where a younger guy falls for an older woman. They both have strong female leads and show the ups and downs of their relationships. The stories are emotional and deal with personal growth, and they have that dramatic, heartfelt vibe. Plus, they look great visually, which adds to the feels!

"Serendipity's Embrace" involves a storyline where the female lead (FL) ends up with the male lead (ML) despite the FL's best friend having a crush on the ML, it does share a thematic similarity with "20th Century Girl." In "20th Century Girl," the FL also deals with a complex love triangle involving her best friend and the ML.

"I Saw You in My Dream" and "While You Were Sleeping" both feature characters who foresee future events through dreams and work to prevent disasters. Both have strong romantic subplots, explore fate versus free will, and maintain suspense as characters race to change the future.
"I Saw You in My Dream" and "While You Were Sleeping" share several similarities:
?Both dramas involve characters who foresee future events through dreams, aiming to prevent disasters they see.
?Central to both is the effort to stop the tragic events predicted in their dreams, combining investigation and intervention.
?Strong romantic storylines develop alongside the main plot, with relationships shaped by shared supernatural experiences.
?Both explore fate versus free will and the ethical dilemmas of foreseeing the future.
?Both dramas maintain suspense and tension as characters race against time to change foreseen outcomes.

If you like supernatural boyfriends then Tale of the Nine-Tailed is another great one for you!
-Tough, dark, mysterious, badass ML
-Chemistry between the leads
-Action & comedy elements

If tyou are into supernatural relationships with demons, grim reapers etc...Well that's another gem for you! Though more on the emotional side, "Doom at your service" is a must watxh for every drama lover who has a weak spot for supernatural boyfriends! xD