my first favorite would've been so many years ago i can't really say, just that it would've been something from boa's older discography (debut to around 2008).
right now....maybe boyfriend's i yah or iu's lilac~ i don't generally gave a fixed favorite, just favorites to listen to at the moment
my first favorite was whistle by blackpink, but now breathe by lee hi is my all time favorite song, both kpop and otherwise, bc it's v meaningful for me. but atm, some of my favorites are wonderland by alexa, untouchable by everglow, latata and uh oh by (g)i-dle, and beg for me by red velvet.
My first favourite was nonono by apink, and now some of my favs are the one by drippin, flash by rocket punch, love dive by ive, replay by golden child, BTBT by B.I, and many more…