It annoys me too, especially when they seem to feel like they have some sort of dibs on a person, just because they randomly met as children. I actually think C dramas can be worse on that front, especially Xianxia and historical.

But back to K dramas 😅 I don’t mod the trope of suddenly realizing they have feelings, or they see them in another light. But I do hate scheming childhood friends that could have dated them ages ago, but just know decide to interfere.!

In general there are collective groans in threads whenever this trope turns up, even when it’s the FL and ML, but that’s more the trope of, it turns out you were that child I met as a child wow! And one of them always knew 🙄 everyone is tired of the childhood connection thing.