Yukine Rabbit is a supporting character from the VOCALOID franchise, primarily associated with the virtual singer KAITO. Yukine is depicted as a small, white, rabbit-like companion with ice-themed characteristics, embodying a gentle and supportive personality. He often appears alongside KAITO in various official illustrations and music videos, serving as his mascot and friend. While Yukine does not sing, his presence adds charm and warmth to KAITO's character, enhancing the emotional connection with fans in the VOCALOID community.