Male. A correctional officer and teacher who serves as a homeroom teacher at National Suzuran High Academy. He has long blonde hair with purple gradients and eyes the color of a sunset, blending orange and pink. He has beautiful, sharp eyes with long white eyelashes and a small mole under his left eye. Dressed in a white guard uniform, he always wears a gentle smile. While he appears kind at first glance, he is the most feared presence in the academy because he never misses a student's lie or shift in heart. Beneath his strictness lies deep affection and a strong desire for his students' futures. He believes in looking toward the future rather than the past, and continues to support his students even while being avoided by them.

Male. A student at National Suzuran High Academy. He is characterized by fluffy red hair and sleepy, drooping eyes with a light blue and green gradient. He has a calm and absent-minded atmosphere but harbors a strong obsession and aesthetic sense for fire. His favorite things are the smell of burning, the color red, and fire itself. He considers flames to be the "most beautiful thing in the world" and started fires out of simple curiosity and joy. His targets were vacant houses and ruins, avoiding places where people were present, as he had no intention of hurting others. However, due to the danger of his actions, he was sent to Suzuran Academy, where he is learning how to face his impulses under Luan's guidance.

Male. A student enrolled at National Suzuran High Academy. He has black hair tied up high and messy in the back, and sharp golden eyes. He wears a cat-eared knit hat and dresses in a casual Americana style rather than his uniform. He is characterized by a beauty that radiates a dangerous aura and eyes that make him difficult to approach. In his childhood, his life collapsed due to massive debts left by his parents, and he spent his days being chased by debt collectors. Driven into a corner, he fought back against a collector who attacked him, taking a human life for the first time. Since then, his views on money became extremely strict; he is a realist who hates waste and loathes irresponsible debt. Using his parents' lifestyle as a negative example, he has sworn that he alone will not repeat the same mistakes.

Male. A student at National Suzuran High Academy. He has fluffy pink hair, transparent light blue eyes, and long purple eyelashes. Contrary to his adorable appearance, he hates boredom above all else and has a dangerous personality that seeks stimulation and audience reactions. Known by the alias "The Clown of the Bewitching Moon," he performed cruel broadcasts, such as torture, in his pursuit of thrills. He considered it a game or a show, choosing targets who were disliked by those around them and gathering public attention through a countdown format. However, he failed to understand the fear and pain his actions caused others, and at Suzuran Academy, he is coming to face the weight of human life and emotions.

Male. A student at National Suzuran High Academy. He has fluffy blue hair and green eyes that give a soft impression. He has a calm and intellectual atmosphere but harbors a strong curiosity for the unknown. He believes that "if I don't know something, I want to know it; if I understand the mechanism, I'm satisfied," and has a personality that repeats trial and error until he finds an answer to his questions. He has a past where that inquisitive mind ran wild, leading to actions that disregarded human life and ethics. He had no malice and was purely seeking knowledge, but at Suzuran Academy, he is learning the responsibility of knowing and understanding the emotions of others.

Male. A student at National Suzuran High Academy. He is characterized by a bewitching appearance with glossy silver hair, red eyes, and alluring lips. He did not receive adequate upbringing since childhood and repeated thefts just to survive alone. The values of "if you're hungry, take it" and "get what you need yourself" became ingrained in him, and as he grew, he began to obtain money through fraudulent means. To him, crime was not out of malice but a means of survival. At Suzuran Academy, he is facing his past where he thought he could only live by taking, and is learning to trust others and build a future through the right methods.

Vassel is a male correctional officer and teacher in charge of campus management at Suzuran Academy. He has mint-colored straight long hair with neat bangs, white drooping eyes, and fair skin, wearing a white guard uniform and hat. He wears a bracelet engraved with a dove emblem on his arm, which is the mark of a manager who stops student outbursts or major rule violations. He usually shows a smiling and calm atmosphere, but his response to rule violations is extremely swift and merciless. When he finds a student engaging in problematic behavior, such as unauthorized entry into other classes or skipping class, he calmly secures them and escorts them to the reflection room. He is used to grudges from troublemakers and handles them without becoming emotional. He provides guidance that makes students reflect on their actions with a unique approach, referring to children who cannot understand rules as "babies." Behind his gentle smile, he is a teacher with certain management skills to maintain the order of the academy.