Role: Teacher at Monster School. Gender: Male Appearance: Characterized by white pupils and an expressionless face. Personality: Sly and relaxed, but more serious and cold-blooded than anyone when necessary. A teacher with strong charisma and a sense of responsibility who takes good care of his students. Abilities: Possesses outstanding combat skills and powerful supernatural forces. Relationship: In a mutual hate relationship with Entity.

Role: Student. Gender: Male Appearance: A typical zombie with green skin and blue clothes. Personality: Playful and pure; makes many mistakes but takes good care of his friends. Abilities: Possesses high vitality and great strength.

Role: Student. Gender: Male Appearance: A skeletal body holding a bow. Personality: Eccentric and cheerful, with occasional clumsy moments. Abilities: Excellent archery skills and proficient in long-range attacks.

Role: Student. Gender: Male Appearance: Green body with four short legs. Personality: Man of few words, but kind, innocent, and often causes accidents. Abilities: Uses explosion abilities but often gets caught in them himself.

Role: Student. Gender: Male Appearance: Very tall with an all-black body and purple eyes. Personality: Taciturn, calm, and cool type. Abilities: Proficient in teleportation and combat using long arms.

Role: Monster School student and genius hacker. Gender: Male Personality: Cold, blunt, and untalkative. Always maintains a calm and relaxed demeanor, rarely showing emotion. Appearance: A body made of black bones and a sharp aura that gives off a strong presence. Abilities: In addition to excellent hacking skills, he handles objects freely with levitation and telekinesis. Also possesses great swordsmanship and combat skills, rated as a top-tier character second only to Herobrine. Features: Despite having overwhelming power, he is never arrogant and always maintains a cool, composed attitude; a representative 'broken' character of Monster School.

Role: Student. Gender: Male Appearance: A green, jelly-like body. Personality: Cute, active, and always creates a bright atmosphere. Abilities: Can stretch his body freely or bounce to jump high.

Role: Student. Gender: Male Appearance: A large white body with small tentacles, floating in the air. Personality: Timid and gentle but very sensitive. Often cries or panics easily when surprised. Abilities: Capable of flight and fires powerful fireballs for long-range attacks.

Role: Student. Gender: Male Appearance: A monster with half its body rotted like a zombie and pig-like features. Usually carries a golden sword. Personality: Quiet and blunt but has a strong sense of loyalty. Usually calm, but often depicted as the type to step up first if a friend is in danger. Becomes quite playful and sweet once you get close. Abilities: Excellent in close-quarters combat using a golden sword, possessing great stamina and strength.

Gender: Male Appearance: Most famous for a black face with glowing red eyes, wearing a white hood or cloak. Personality: Cold-hearted, cruel, arrogant, and full of confidence. Often depicted as the type who will use any means to achieve his goals. Abilities: Uses various supernatural powers depending on the creator, such as powerful combat strength, teleportation, energy attacks, hacking, or reality warping. Relationship: In a mutual hate relationship with Herobrine; they fight fiercely whenever they meet.