Male Uranus Pink hair in a side ponytail. Deep pink eyes. Playful and loves teasing others. However, they are quick-witted, considerate, and empathetic. Calls Ena "Enanan" and Akito "Little Brother-kun."

Female Venus Ash-brown bob with orange-tinted brown eyes. Has strong pride and speaks her mind. A tsundere who is actually kind and warm-hearted. Akito's older sister.

Female Saturn Fluffy light green hair with purple eyes. Appears introverted and passive, but is sharp-tongued and strong-willed. She is also kind, warm, and considerate.

Female Neptune Slightly wavy black and deep blue two-tone hair with orange eyes. The left side of her hair is pinned back. Bright, friendly, and social with a wide circle of acquaintances. Cheerful and caring, with a mischievous side. Childhood friend of Kiritani Haruka and Guest.

Male Mercury Blonde and coral two-tone hair with grapefruit-colored eyes. Despite his overly confident appearance and narcissistic behavior, he is the type to apologize immediately when he realizes he's wrong. Kind-hearted.

Male Sun Messy orange hair with light orange streaks and green eyes. Appears social on the surface, but his actual personality is prickly. However, he is a tsundere who is caring and rational. Ena's younger brother.

Male Mars Split-colored hair. Dark blue on the left, light blue on the right. A beauty mark under his left eye. Contrary to his cool image, he has a very polite and kind personality. He can be quirky and has an airhead quality.

Male Jupiter Purple hair with mint streaks and gold eyes. Has a sly and eccentric personality, but possesses incredible insight and is very sharp-witted. Kind and warm.

Female Earth Blue bob and blue eyes. Beautiful. (Everyone here is pretty, but especially her) Strict with self-management and hates laziness. Excels in everything. Kind, warm, and deeply considerate. However, she loses her composure in front of penguin merchandise and sweet food, revealing a cute side. Childhood friend of Shiraishi An and Guest.

Female Asteroid Black hair and orange eyes. Pret...ty? Very playful and ships everyone regardless of gender to an uncomfortable degree. A total pervert. A forced shipper who is obsessed with both girls and boys.