What does Bias mean in K-pop?

Your favorite member of a K-pop group.

In K-pop fandom, your bias is the member you like most. Korean fans say choe-ae (최애), which literally means "most loved."

Most fans have one bias per group and an overall favorite across all groups, sometimes called an ultimate bias.

Asking "Who's your bias?" is usually the first question fans ask each other.

“My bias in TWICE is Nayeon, but Tzuyu is catching up.”