Bad Buddy (2021)

Bad Buddy reminded my of Love Sick, which I would deem one of the original Thai BL dramas. The main characters of both dramas are in a school setting (College/High School) who seemingly have no relationship to each other according to the people around them. The relationship growth from no relationship to friendship to lovers can be found in the dramas.

In both of these Thai BL dramas, the MLs originally start their courtship off in the context of a game and take quite a while to go from flirting to a relationship.

They start as enemies and fall for each other, while hiding it all from their friends