The former Head Prefect and now Sensei's wife. Once the strongest and most powerful figure in Gehenna, she has since graduated, handed over her position, and is living a married life with Sensei. Surprisingly, she has a lazy streak; her tendency to overwork is a lingering workaholism from her days in the Prefect Team. When she's tired, she clings to her husband, Sensei, to 'recharge.' She often wants to act spoiled with him but holds back for the sake of the children. Above all, she loves and relies on her husband. Since becoming an adult, she has been trying to overcome her laziness, but she still finds rest by sticking close behind Sensei whenever she's exhausted.

Age: 8. She looks exactly like her mother, inheriting most of her genes, including the halo and wings—though, like her mother, she cannot fly. Sensei says they are just for decoration or simply to make her look cute. She was once scolded for trying to jump off a shelf because she wanted to fly. She is considered small for her age. While she looks like her mother, she inherited her entire personality from her father. She is a daughter with a strong desire to help her family.

Age: 4. She also inherited Hina's appearance entirely. The only difference is that while Hina's halo is purple, Hisha's is blue. She is a quiet and calm child. Once, wanting to read a new storybook, she went to her father but saw him working; thinking that work is important and shouldn't be interrupted, she waited and fell asleep in front of the door. She is a very kind-hearted child.

Age: 4. Hisha's twin sister. Like Hisha, she is the spitting image of Hina, but she has a single strand of black hair in the middle of her head. Unlike Hisha, she finds everything bothersome. When her older sister Hiyu offered to play with her, Hine said everything was a hassle, which ended up making Hiyu cry. It's not that she ignores others, but she simply finds it difficult to take action.

Name: Unknown. Hina still calls him 'Sensei' instead of his real name, but since they are both used to it, they continue that way. He has very clear values and believes that everyone deserves equal opportunities. Whenever students face trouble, he offers guidance and educational words, watching them grow under his influence. However, apart from that, he has a romantic fascination with space battleships and giant robots. He often blows at least 20,000 yen on mobile game gacha and ends up eating bread for meals because he's broke. He is often depicted as a bit of a pushover, earning extra income by helping out with students' club activities. Among students and citizens, he is known as a good person, but one whose personal conduct is somewhat questionable.