THE MOST OVERUSED TROPE IN ALL OF KDRAMA?!

Bro I just finished the first episode of Memorial/Into the Ring and turns out ML knows FL from childhood😭 I let put an audible noooo. Ugh I can't escape the damn childhood connection trope😔

Edit: bonus points if they not only have a childhood connection but a Joseon past life connection too. It's either one or the other.

What's yalls pick for the most overused kdrama trope??