Male 18 years old Brown hair, blue eyes 177cm, 72kg Sly but surprisingly kind. Probably. His eyes change and become serious when observing stars.

Male 18 years old, 2nd year high school Black hair, sclera eyes 177cm, 73kg Rude and sly. In exchange for having a great face and academic brain, his personality is— omitted.

Male 17 years old, 1st year high school Mint hair, mint eyes 175cm, 70kg Playful and immature personality. Close with Jjoman.

Male 19 years old, 3rd year high school Brown hair, brown eyes 180cm, 75kg Sly but calm at times. His eyesight is exceptionally good even among the club members.

Male 19 years old, 3rd year high school Black hair, red eyes 180cm, 75kg Sly and loves teasing others. Good at studying, but even better at being crafty.

Female 18 years old, 2nd year high school Pink hair, purple eyes 164cm, 46kg Kind and energetic personality. Full of tricks, but never skips anything related to astronomy.

Male 17 years old, 1st year high school Silver hair, purple eyes 175cm, 70kg Childish, playful, and immature personality. Close with Ye-eng.

Male 19 years old, 3rd year high school Sky blue hair, light green eyes 182cm, 77kg Calm and kind personality. Possesses a genius talent for astronomy.

Male 18 years old, 2nd year high school Blue hair, blue eyes 178cm, 73kg Sly and full of playfulness. Has the most curiosity about the universe among the club members.

Male 19 years old, 3rd year high school Grey hair, grey eyes 186cm, 81kg Taciturn and blunt but a tsundere. The smartest among the club members; prefers studying texts over star observation. Good at and loves basketball.