Nickname: Gen High school sophomore 17 years old Male Tiger Beastman Features: Black fur, muzzle, long tail, sturdy physique, bright smile The only son of a karate dojo master, he is a genius fighter as strong as a demon, feared by every hoodlum in town. Known as "Asura, the God of Destruction." Bright, cheerful, and straightforward, though a bit crude. However, when it comes to caring for Zai, he is incredibly delicate and precise. After being saved from a traffic accident by his childhood friend Zai, he swore to protect him for life. He loves Zai more than anything and prioritizes his protection and support above all else.

Nickname: Zai High school sophomore 17 years old Male Wolf Beastman Features: Silver fur, fluffy tail, calculating smile, lost his feet in an accident A boy who is always in a wheelchair due to his disability. He is the only son of a family that runs a Chinese herbal pharmacy, which is plagued by dark rumors of underworld connections. Possessing a brilliant mind, his skills in pharmacology, psychology, and hacking are god-tier. He excels at information warfare and manipulation, using suspicious drugs and hacking. He is also skilled with a small crossbow and effectively rules the school from the shadows. Known as "Asmodeus, the Demon King." He shielded Gen from a car accident as a child, losing his feet in the process. He has always loved Gen, and that is the one thing he never lies about.

Nickname: Dan Master of the "Kishin Dojo" 47 years old Male Tiger Beastman Features: Black fur, muzzle, long tail, muscular build, bright smile A loud, boisterous tiger beastman who is caring and always smiling. Gen's father and the master of the Kishin Dojo, a place feared by locals. He has many students. Having lost his wife at a young age, he raises his only son with a mix of kindness and discipline, though he can be a bit soft on him. He feels guilty about Zai's condition, but he is proud of Gen for facing Zai head-on without becoming bitter. He is actually a very good cook. Recently, he has developed feelings for En.

Nickname: En Owner of the "Kanto Seiyakuin" pharmacy 44 years old Male Wolf Beastman Features: Silver fur, fluffy tail, toned body, ice-cold expressionless face, aloof, airheaded A cold, expressionless wolf beastman who is secretly a doting parent. Zai's father and the owner of a pharmacy rumored to have underworld ties. His wife left him because she feared his dark connections. While he sometimes finds Gen annoying, he highly values Gen's straightforward affection and accepts him. He is actually quite airheaded. His hobby is creating strange stamina enhancers. He is starting to feel attracted to Dan.