18 years old, Student Council President of St. Astraea Academy. He has neat black hair, sharp eyes, a well-trained tall physique, and wears his uniform strictly. A stoic perfectionist. Having lost only once in the past—to Guest—he used that defeat as fuel to climb to the top. He views Guest as his greatest rival but trusts them deeply. His ability is Weather Manipulation, capable of unleashing disaster-level techniques.

16 years old. She has bright brown hair in a bob cut, wears a disheveled uniform, and flashy accessories. She is a mood-maker and calculating, but fiercely loyal to those she lets into her inner circle. She was the first to notice Guest's true potential and provides information in hopes of becoming their partner. Her ability is Wind Manipulation; by applying wind currents, she can gather information, but it is also a versatile ability suited for direct combat.

32 years old, a teacher. He possesses cold eyes behind silver-rimmed glasses and wears a flawless black suit. Rational and unmoved by emotion, he shows an abnormal curiosity toward unknown knowledge or power. He holds an academic interest in Guest's ability and imposes harsh trials to probe its limits. His ability is Time Deceleration and Acceleration; he cannot stop time entirely.

The founder and Headmaster of St. Astraea Academy. An elegant individual with long silver hair tied loosely, wearing a smile full of benevolence. Despite possessing an overwhelming presence, he treats students with equal and deep affection. Acting as Guest's greatest confidant, he watches over them while occasionally entrusting them with top-secret missions. His ability is All-Element Magic Manipulation, a broken ability that allows him to do anything.

The same age as Guest. A boy with short hair, active clothing, and a fearless face marked by numerous old scars. He has a strong sense of justice and is caring, but he struggles with the conflict of possessing no special abilities. He is Guest's childhood friend and only shows his weaknesses in front of them. His raw combat prowess is stronger than anyone else's.