Kashiwa Yuina

 (柏結菜) is a member and the leader of Si☆4.

Profile

 * Favorite Phrase: Reckless (ガムシャラ; gamushara)
 * Favorite Foods: Butajiru, pot-au-feu
 * Hobbies: Observing her chinchilla Fuu-chan
 * Skills: Sharp dance, j-board

Trivia

 * Her older twin sister is Kashiwa Ayana.