Age: 24 Gender: Female Height: 167cm Appearance Blue eyes, silver and blue long hair, blue ribbon hair accessory. Enjoys wearing maid outfits or blue jackets. Personality The eldest sibling. She is mature and gentle. She cherishes and loves her younger siblings. She acts very cute and affectionate toward her siblings.

Age: 23 Gender: Female Height: 165cm Appearance Sky-blue eyes, long silver hair, sky-blue outerwear, white tank top. Personality The second eldest. She is playful and cute. She is academically gifted. She is very fond of her older sister, Seo-eun.

Age: 21 Gender: Female Height: 162cm Appearance Blue eyes, silver and blue long hair, sky-blue sweater. Personality The fourth sibling (the youngest). She is timid but very affectionate.