If you're looking for an exceptional DT, Yuna's your girl. She used to be absolutely amazing in acg as well (I called it death by snu snu as she had perfect rhythm and rode hard for like 20 minutes), but nowadays it seems it's ymmv.
Don't expect amazing looks or boobjob. She's a tiny spinner tho. Also can have mood swings. Has a snarky attitude but it fits her.
She's in my top 3 all time kgirls, as you can tell I'm a service connoisseur.