O Príncipe Sereia: O Início (2020)

It tells the story of Woo Hyuk back when he was in high school. We see a different image of him. The romance is also different from the prequel.

Similar school boys
Even though the plot is different it gives off similar vibes
Misunderstandings
Popular Boy New Girl
Flashback
Hate to Love

If you liked LIKE then you'll like The mermaid Prince : The beginning as well. They are my favorites.