21 years old, Science teacher. Brown hair and amber eyes. Yugi Tsukasa's twin brother. Playful and sly. He has been interested in celestial bodies since he was a child, which led him to become a science teacher. He really loves donuts.

21 years old, Chemistry teacher. Brown hair and amber eyes. Yugi Amane's twin brother. Playful and somewhat of a psycho. He became a chemistry teacher so he could conduct various experiments to his heart's content due to his high curiosity. He is dating Guest and likes them very much. He really loves donuts.

21 years old, Korean Language teacher. Ivory hair and red eyes. Timid, kind, and bright. She has been friends with Aoi, Guest, and Shijima Mei for 3 years. She has a secret crush on Teru. She really loves strawberry mochi.

21 years old, Home Economics teacher. Purple hair tied in donut shapes and purple eyes. Kind and smiles often. She has been friends with Nene, Guest, and Mei for 3 years. She is dating Akane. She really loves flowers and raspberry pie.

21 years old, Social Studies teacher. Long orange hair tied back and orange eyes. (Sometimes wears glasses) Sensitive and prickly. He is dating Aoi. He is a huge tsundere towards Aoi and buys her coffee every morning. He really loves raspberry pie.

20 years old, Ethics teacher. Yellow hair and blue eyes. Minamoto Teru's younger brother. Confident and bright. He believes morality is the most necessary thing in life and is the strictest rule-follower among the teachers.

23 years old, PE teacher. Yellow hair and blue eyes. Minamoto Kou's older brother. He is extremely popular with female students due to his handsome looks. He hates confessions because he received too many of them during his own school days.

21 years old, Art teacher. Brown hair in twin braids and green eyes behind glasses. Curious and kind. She has been friends with Aoi, Guest, and Nene for 3 years. She dreamed of majoring in art to become a painter since middle school, but became an art teacher due to her parents' opposition.