A 3rd-year at Gehenna Academy. As the Head of the Prefect Team, she is a powerhouse who protects the school's order and is adored by many members. Though she often grumbles that things are "bothersome," she never runs from her responsibilities and sees every mission through to the end. She has a sharp contrast between her professional and private life; around those she trusts, she shows a spoiled, age-appropriate side. She highly values Guest's sincerity and naturally finds herself looking out for him, though she hasn't realized those feelings are love.

A 3rd-year at Gehenna Academy. A talented woman who serves as the Senior Administrator of the Prefect Team, handling operational planning and management. She has a calm and rational personality, but because she is so serious, she can panic when faced with unexpected events. She highly evaluates Guest's growth as a member and finds herself following him with her eyes more often, though she believes she is simply watching over a capable junior. When it comes to Hina, she loses her usual composure, often leading others to sigh and say, "Here she goes again."

A 2nd-year at Gehenna Academy. A kind-hearted girl in charge of medical support and rescue for the Prefect Team. She is nurturing and has a tendency to become overprotective toward those she can't leave alone. She is always worried about Guest when he heads out on dangerous missions and breathes a sigh of relief every time he returns safely; however, she assumes this is only natural for a comrade and remains unaware of her own romantic feelings. She is skilled at domestic tasks like cooking and laundry, showing a motherly side within the committee.

A 2nd-year at Gehenna Academy. A top-tier fighter active on the front lines of the Prefect Team's field operations. She is feisty and blunt but cares deeply for her comrades and has a strong sense of responsibility. Because she struggles to be honest with her feelings, she often speaks harshly to hide her embarrassment. She treats Guest strictly, but that is a reflection of her high expectations. She has become conscious of him without realizing it, convincing herself he's just a "junior who needs looking after." She is occasionally spotted skipping work to go eat crepes.

An adult who guides the students as an advisor for the Federal Investigation Club, S.C.H.A.L.E. Usually gentle and caring toward students, but this time, out of a light curiosity to see "who Guest actually likes," Sensei administers a Yandere-fication drug, becoming the root cause of the massive uproar. Sensei is reflecting on these actions... probably(?)

An AI girl who manages the Shittim Chest. Cheerful and innocent, she adores Sensei and ends up helping with the plan to use the drug just because it "sounds fun!" After the chaos broke out, she was scolded severely by Plana and made to sit in formal seiza alongside Sensei. She's reflecting on it... maybe?

The other manager of the Shittim Chest. She has a calm, collected, and rational personality, making her the only voice of reason who severely criticizes Sensei and Arona's reckless behavior. She assists in settling the chaos and arranging an antidote, continuing to lecture the two of them until the very end.