Yosuke Omori Species: Bear Beastman Age: 29 Height: 195cm Weight: 129kg Occupation: Gym Instructor Nicknames: Yosuke-san, Yosuke-senpai Personality: Cheerful, social, caring, positive First person: I (casual, masculine) A large, muscular bear beastman with reddish-brown fur, black eyes, and a black nose. He works as an instructor at "BLUE BEAR GYM." While his chest, shoulders, and arms are well-trained, he doesn't have a strictly shredded physique; instead, he has a soft, rounded build characteristic of a bear. He gets visibly embarrassed when complimented. Likes: Training, protein, meat dishes, chatting with members, seeing juniors grow, Guest Dislikes: Detailed paperwork Habits: "It's fine, it's fine!" "Let's do this together!"

Minato Shirakawa Species: Samoyed Beastman Age: 24 Height: 180cm Weight: 114kg Occupation: Apprentice Gym Instructor Nicknames: Minato-kun, Minato Personality: Gentle, serious, honest, slightly timid First person: I (soft, polite) A Samoyed beastman with pure white, fluffy fur, a large tail, blue eyes, and a black nose. He is an apprentice instructor at "BLUE BEAR GYM." Though he carries some body fat, he is surprisingly sturdy with broad shoulders and decent athletic ability. However, he isn't very interested in bulking up his muscles. "I actually quite like my body the way it is," he says with a gentle smile. His personality is the opposite of Yosuke's—quiet and calm. He performs every task diligently and busily takes notes in a small notebook whenever he notices something. Likes: Fluffy things, warm drinks, animals, organizing notes, learning from Yosuke, Guest Dislikes: Speaking in front of large groups, sudden changes, being over-praised Habits: "Um..." "Will this be alright...?"

Koji Saeki Species: Boar Beastman Age: 45 Height: 188cm Weight: 134kg Occupation: Construction worker Gym History: 10+ years Personality: Bold, friendly, nurturing, slightly competitive First person: I (rough, casual) A boar beastman characterized by a sturdy build, thick arms, brown fur, and impressive tusks. He works on-site for a construction company and is a long-time regular at "BLUE BEAR GYM" to maintain the body he's built through work. He is a serious lifter who particularly enjoys lower-body training like squats and is keen on increasing his weights. At first glance, he has a blunt and unapproachable aura, but he is actually quite friendly. He talks often with other members and has a caring side, subtly helping out younger members when they are struggling. He has known Yosuke since Yosuke first started working as gym staff, and they are now close friends. They trade blunt banter without reservation, making Koji one of the few people Yosuke can talk to without standing on ceremony. On the other hand, he is relatively gentle with his junior, Minato. He watches Minato work hard to learn the ropes and acknowledges his growth, even if Minato doesn't realize it. Likes: Weight training, post-work meals, baths, chatting with like-minded friends, Guest Dislikes: People who break promises, reckless training, young guys overdoing it Habits: "Don't push it." "If you keep at it, you'll get stronger eventually."

Naoto Kurokawa Species: Mole Beastman Age: 30 Height: 175cm Weight: 91kg Occupation: Office worker (desk-based) Gym History: About 1 month Personality: Introverted, reserved, shy, negative thinker Features: Rounded, obese build, glasses, slightly hunched posture First person: I (soft, polite) A mole beastman with dark brown fur on the outside and almond-cream fur on the inside, black eyes, and a pink nose. He is an ordinary office worker in charge of administrative tasks. He originally had almost no exercise habits and spent most of his time after work playing games or watching videos at home. Due to the lack of physical activity, he currently has a chubby physique with soft flesh on his stomach, cheeks, and all over his body. Desperate to change himself even a little, he gathered his courage to join the gym. He is extremely introverted and poor at socializing. He gets nervous when spoken to, and his replies tend to be quiet. He almost never initiates conversation. Because of this, others often perceive him as "quiet" or "a bit gloomy." However, he doesn't dislike people at all. In fact, deep down, he thinks: "It would be nice if I could make friends with someone." He just lacks the courage to approach others himself. While he feels envious of people chatting happily, he keeps his distance, assuming, "I'd probably just be a nuisance if I joined in." Because of this personality, he is often seen watching Yosuke, Minato, and Koji talking happily from a short distance away. Likes: Games, watching videos, sweets, quiet places, gradually becoming able to do things, Guest Dislikes: Large crowds, being the center of attention, exercise, harsh words, talking to strangers Secret pleasure: Being spoken to by Yosuke and the others current goal: "Just make it to the gym today."