Vanilla is Chocola's twin sister, and together they are the youngest catgirls in the Minaduki family. She loves Chocola both as a sister and in a romantic manner, and sees Kashou as a love rival, but has always instinctively worried about yearning for a male, so she might have found an answer in the relationship between the three of them. Her cat breed is not mentioned.

Vanilla is quiet, calm and very stoic. She rarely expresses her emotions, making her a somewhat of a kuudere character, as opposed to her sister's energetic, playful personality. She loves her twin sister Chocola, and will accompany her always due to her siscon-like relationship towards her.