Ahh lets see I first knew about Kpop from some friends in my gym class but I didn't really get into it until a year later when it helped me reconnect with one of my friends in Japan which was only a little while ago (So I'm still new please take care of me).
My biases would be
1)Jungkook from BTS
2)Koo Junhoe from IKon
3)Yongguk from Big Bang
Ultimate biases is difficult but I’d have to say this precious one here, Jungkook(^^♪