Wolfic

If we're talking vitamin as in terms of energy then I'd definitely go for Nicole. She's always seemed the most energetic to me. But if we talk about vitamin as someone who's cute and capable of rousing others, I'd say Seungyeon, because in my opinion she's the cutest member of Kara.

Yeah, I'm definitely a new fan as I got introduced to them when they were promoting themselves in Japan. That being said, the first song I ever heard/saw from them was "Mister" (the outfits were what stood out to me the most. And Nicole), and then it was "Jumping".