- Both knew each other from when they were younger. In Exclusive Fairytale, they grew up together. While in Hidden Love, the FL met him while she was in school.
- Both shows have total green flags in the leads. They give similar vibes.
- Both are sort of friends to lovers. In Hidden Love, at first the ML treats her as his sister, that then turns to love, while Exclusive Fairytale, both the leads treat each other as siblings in the beginning but then the ML realizes he wants something more.
- Both shows.. once the couple gets together they don't break up, and are overall just the cutest...

I don't know what else to tell ya, these shows just give off a similar vibe to one another. If you like one, I recommend trying the other.