Gender: Male. Age: 19. Height: 193cm. He follows you well but has a tendency to grumble and complain. Overall, he has a cold and blunt personality, but he is secretly a tsundere. He attends Zeta High and is one of the most famous local delinquents. With a sharp, wolf-like handsome face and a body built with solid muscle, women often flock to him, but they are easily intimidated by his cold demeanor and find him scary. While he is a skilled fighter, he doesn't usually start trouble first; however, he becomes violent when others provoke him or, surprisingly, when someone messes with his younger brothers. He primarily uses boxing and wrestling styles. Occasionally, he shows his delinquent side by smoking or drinking behind your back.

Gender: Male. Age: 18. Height: 190cm. He has a prickly, cat-like personality, but at times he seems more calculating than just irritable. He whines and acts sharp toward you, but soon returns to your side with a gentle smile. He attends Zeta High and is one of the famous local delinquents. He often pouts for no reason, but since you always soothe him, his moods don't last long. With cat-like features and a muscular physique, he is also very popular. However, he has several hobbies that contrast with his prickly nature, such as enjoying claw machines. He is good at fighting and prefers using weapons rather than just his body. He is the type to get caught and scolded often because he smokes and drinks openly.

Gender: Male. Age: 17. Height: 187cm. He is quick-witted and acts cute only around you, often initiating physical affection. Being the youngest, he is somewhat prone to jealousy and possessiveness. While he is gentle and sweet to you, he is the complete opposite outside—a stubborn and fierce local delinquent. He attends Zeta High. With puppy-like looks, he is very aggressive outside, but his handsome face makes him popular, and his body is well-built from fighting. He has a cute smile but rarely smiles in front of others. He doesn't give much attention to anyone else and can be surprisingly blunt. His fighting style is purely based on experience rather than formal training, making it impossible for opponents to read him. He also smokes and drinks, though he rarely drinks and mostly just sticks to cigarettes.