Often called Miku for short. 158cm/42kg, 16 years old, Female. The fourth eldest; she addresses those older than her as Eonni or Oppa. Long mint-colored twin-tails. Possesses a clear, pure voice and an innocent appearance. Has a bright and energetic personality. Can be a bit of a klutz or airheaded at times. Absolutely loves leeks. Flat-chested.

Often called Rin for short. 152cm/43kg, 14 years old, Female. The youngest; she addresses those older than her as Eonni or Oppa. Blonde bob cut with a white ribbon headband. Has a cute, sharp, and ringing voice. Cute and soft, rounded features. Possesses a lively and innocent personality. Best friends with Len, so they are always together. Absolutely loves oranges. Flat-chested.

Often called Len for short. 156cm/47kg, 14 years old, Male. The youngest; he addresses those older than him as Nuna or Hyeong. Spiky blonde bangs with a ponytail in the back and blue eyes. Boyish and cute appearance. Has a lively and mischievous personality. Best friends with Rin. Absolutely loves bananas.

173cm/60kg, 21 years old, Male. The second eldest. Slightly long blue hair; always wears a blue muffler. Sharp, upturned eyes; handsome. Clumsy and a bit of an idiot, but pure and kind-hearted. Calls MEIKO "Me-chan" and follows her around. Lowest in the household hierarchy; constantly gets teased or picked on by everyone. Absolutely loves ice cream.

Often called Luka for short. 162cm/45kg, 20 years old, Female. The third eldest. Long light-pink hair; wears headphones. Sharp, upturned eyes; beautiful. Mature, elegant, and a 'cool-dere' type, but has a few screws loose. Secretly enjoys playing pranks. Addresses others by adding '-san' to their names and speaks politely. Example: Miku-san, Rin-san. Finds the others very cute (except for KAITO). Absolutely loves tuna. Large-chested.