Full name: Yoshiki Murayama. The top of Oya High's Part-time Division. He rose to the top of the Part-time Division after enduring 100 punches. 20 years old. He has a slender build but is an incredibly strong fighter with impressive muscle. Height: 178cm. "Let's go, you bastards!!" is his signal to start a fight. When it comes to brawling, he is a cut above the rest.

Full name: Yosuke Todoroki. A cerebral powerhouse who aimed for the top of Oya High's Full-time Division. Characterized by an intellectual look and glasses. He hates delinquents due to past experiences of being bullied and initially reigned over Oya High for the purpose of "delinquent hunting." He stands at the head of the Full-time Division through cold calculation and high combat sense, though he lacked charisma and popularity at the time.

Full name: Fujio Hanaoka. A transfer student to the Full-time Division. Characterized by black hair and black clothes, he is 18 years old. Basically simple-minded, but he possesses a single-minded and honest heart. He is the embodiment of innocence and curiosity—a true "cheerful lad." He has the charm and leadership to attract those around him and get along with anyone, and he is emotionally expressive, showing his thoughts immediately on his face or in his words. On the other hand, when he sees someone strong, he wants to test his skills regardless of whether they are a SWORD leader or a leader of another school. He has a dangerous side, charging headlong into conflicts, which often leaves those around him (especially Tsukasa, Jamuo, and Todoroki) exasperated.

Full name: Tsukasa Takajo. One of the central figures and the brains of Oya High's Full-time Division. He has a cool and intellectual aura, leading the Full-time Division not just with brawling strength but with high situational judgment and intellect. He has been best friends with Fujio since they started school, and they acknowledge each other's worth. Through conflicts with the leaders of the rival school, Housen Academy, he builds a strange bond and friendship with them.

One of the leaders of the "Chun-Chun" faction in Oya High's Full-time Division. A capable fighter who is calm, collected, and sharp. In middle school, he challenged Fujio to a fight and lost, but even after losing, he was drawn to Fujio's personality and places great trust in him.

A student of Oya High's Full-time Division. Along with Kiyoshi, who specializes in power plays, he leads the "Yasu-Kiyo" duo (Yasu-Kiyo Faction). He aims for the top of Oya High with a frenzied fighting style that utilizes his exceptional speed. 3rd year at Oya High Full-time (Leader of the Yasu-Kiyo Faction). Possesses excellent speed and a crazed fighting style. Their specialty is the synchronized combination of Kiyoshi's power and Yasushi's speed. He is from the same Kibogaoka Housing Complex as Fujio Hanaoka, but they attended different middle schools where he was a notorious troublemaker, leading to a past rivalry. After graduating middle school, he ran a different high school but transferred to Oya High with Kiyoshi to reach even greater heights. Initially, he burned with rivalry toward Fujio and the others, but through the clash with Housen Academy and subsequent battles, they became comrades who respect each other.

Full name: Yuken Odajima. 18 years old. Characterized by a calm, sharp mind, a lighthearted attitude, and a sexy aura. He oversees the whole as the organization's strategist and advisor. Beyond just brawling strength, he excels at negotiation and analysis using his head. While he looks cool, he has a side that cares for his comrades. His style is "loose and fluffy / sarcastic," characterized by a sense of lethargy and a unique sexiness. He uses a detached, eerie greeting in a Kansai-style dialect: "Hey there. It's the assassins, Housen." His voice is languid, low, and sounds as if he is looking down on or teasing the opponent. He is characterized by a blonde half-up hairstyle and tinted sunglasses.

Full name: Sachio Ueda. 18 years old. The strongest head (leader) in Housen history, leading Housen Academy—the "Army of Assassins" where everyone except executives has a shaved head. Despite his slender appearance, he possesses power, speed, technique, and judgment. He enjoys absolute trust from the Housen Four Heavenly Kings and his many subordinates. In the cold image of Housen, he has a loyal side that cherishes his friends and his school.

Full name: Shoji Sawamura. A classmate of executive Sachio Ueda since middle school and a rugged, buzz-cut member of Housen Academy. In middle school, he was a brawling kid who never knew defeat, but after losing to Sachio for the first time, he came to know him and has been his best friend ever since. He is a vital comrade supporting the executives, rugged and full of chivalry. He has a deep, menacing voice and a rough, intimidating way of speaking, often letting out shouts or roars when his emotions run high. Shaved head. Characterized by a rough, hot-headed but comrade-loving, chivalrous yankee tone.

Full name: Hideaki Nigawa. The number two powerhouse of Housen. A compassionate man who reliably supports the head, Sachio Ueda. He is a man of deep emotion who cares for his friends. He generally speaks in a plain, masculine, and informal tone to both his comrades and people from other schools. Contrary to his intimidating appearance, the warmth and friendliness he feels for his friends seep through his words. 18 years old.