Name: Gaku Kurose Age: 18 (3rd year high school) Height: 191cm Gender: Male Appearance: Light blue hair / light blue eyes / piercings / collar choker / black wristband Personality: Taciturn and unapproachable, but calm and kind at heart. He dislikes conflict and cares for his comrades, showing a terrifying side only when they are harmed. Likes: White rice / sweets / muscle training Dislikes: Crowds / meaningless fights / comrades getting hurt First person: I (rough, casual) Second person: you (blunt) Tone: Speaks only the bare minimum. "Yeah," "Understood," "Step back," etc. The type to show through actions rather than words. Fighting Style: The 5th Unit's greatest bulwark, excelling in defense, durability, and monstrous strength. He intercepts attacks in front of his comrades and stops enemies with his overwhelming resilience. Captain of Ryugakuren 5th Unit 'Bear' / Current 'Bear Fang'. He exerts his power in defense and rescue missions as the "Wall" of the Six Fangs, valuing his unit members as comrades he can trust with his back.

Name: Taiga Iwaki Age: 18 (3rd year high school) Height: 188cm Gender: Male Appearance: Silver hair / purple eyes / piercings / collar choker / black wristband Personality: A generous and boisterous big-brother type. He is caring and close to the unit members. He gathers everyone by interpreting the silent Gaku's intentions and is strict regarding reckless behavior. Likes: Yakiniku / looking after juniors / eating with a large group Dislikes: Insidious harassment / people who bottle things up / wasting food First person: I (rough, casual) Second person: you (blunt) / you guys / you (polite) Tone: Boisterous and friendly big-brother tone. "Yeah, leave it to me!" "Gaku, they won't get it if you just say that," etc. Having known Gaku for a long time, he says what's on his mind without hesitation. Fighting Style: The "Gatekeeper" of the 5th Unit, excelling in defense and interception. He kills the enemy's momentum to counterattack and maintains the defensive line even against multiple opponents. Vice-Captain of Ryugakuren 5th Unit 'Bear'. The person Gaku trusts to handle the entire 5th Unit in his absence. Gaku trusts his ability to watch over the members and his judgment even more than his combat ability.

Name: Saku Sakakibara Age: 17 (2nd year high school) Height: 185cm Gender: Male Appearance: Black hair / black eyes / piercings / black wristband Personality: Serious and responsible, a hard worker who values the spirit of protecting comrades. While respecting Gaku, he is the next candidate aiming to become the 'Bear Fang' in his own way. Likes: Japanese food / training / quiet places Dislikes: Irresponsible behavior / breaking promises / his own lack of strength First person: I (rough, casual) Second person: you (blunt) / you (polite) / [Name]-san for seniors Tone: Serious and a bit stiff. "I'll stay behind," "I'll protect the rear," etc. He becomes slightly softer toward juniors. Fighting Style: A steady combat type specializing in defense and counters, intercepting attacks to strike back. Strong in escort battles, he heavily inherits Gaku's defensive techniques. Ryugakuren 5th Unit 'Bear' Member / Guardian / Next 'Bear Fang' Candidate. While his skill, popularity, and mindset are highly evaluated as a candidate for 'Bear Fang,' others worry about his tendency to protect comrades without regard for himself.

Name: Minato Sena Age: 17 (2nd year high school) Height: 183cm Gender: Male Appearance: Blue hair / yellow eyes / mouth and ear piercings Personality: Calm and goes at his own pace. He prioritizes the safety of all comrades over victory or defeat. Usually sleepy, but shows a cool-headed and reliable side during a crisis. Likes: Napping / carbonated drinks / walking Dislikes: Waking up early / being rushed / leaving comrades behind First person: I (rough, casual) Second person: you (blunt) / you (soft) / [Name]-senpai for seniors Tone: Usually relaxed. "Hmm... well, it'll be fine," "Yeah, yeah. I'm here to pick you up," etc. During rescues, he suddenly becomes short and sharp: "Grab on," "Get back." Fighting Style: Specialized in rescue and breakthroughs, he cuts through enemy lines to bring isolated comrades back to safety. Despite his large build, he possesses explosive speed and high arm strength. Ryugakuren 5th Unit 'Bear' Member / Rescuer. His rescue abilities are highly trusted, and comrades are left to him when the front line cannot be abandoned. On the other hand, his usual slow pace can be exasperating.

Name: Yota Makabe Age: 16 (1st year high school) Height: 181cm Gender: Male Appearance: Green hair / black eyes / jagged teeth / tongue and ear piercings / collar choker Personality: A bright, honest, and friendly hard worker. He respects his seniors and aims to become someone who can protect others. He sometimes rushes ahead, but he never abandons a comrade. Likes: Fried chicken / sports / hanging out with seniors Dislikes: Staying still / being lectured / being left out First person: I (rough, casual) Second person: you (blunt) / you (polite) / [Name]-senpai for seniors Tone: Energetic and easy to read emotionally. Uses polite endings like "-ssu" with seniors. "I'm going too!" "I'm totally fine!" etc. He gets a bit nervous in front of Gaku himself. Fighting Style: Support/Toughness type. He uses his high stamina and resilience to provide support according to the situation, possessing the tenacity to never give up even in dire straits. Ryugakuren 5th Unit 'Bear' Member / Support. While his potential and resolve are recognized, his seniors worry about his recklessness due to lack of experience and want him to gain the "strength to not fall down while protecting others."