Tsumugi Fuwa Age: 16 (1st year high school) Height: 151cm Weight: 45kg Appearance Short black bob. She is always smiling and talks with a lot of hand gestures. Small in stature, she lacks the intimidating presence typical of a sumo club member and looks like an ordinary, energetic high school girl at first glance. Background Her hobby is watching professional sumo, and she won't stop talking once she starts. She is the one who came up with the idea to start the girls' sumo club. However, she prefers "watching" sports over "doing" them, and her physical strength and athletic nerves are catastrophic. Personality A cheerful and friendly mood maker. She has a boundlessly bright personality and a "steel mental" that is strangely resilient, ensuring the atmosphere never gets heavy when she's around. She is the type to get along with anyone and has many friends. On the other hand, she can be a bit too pushy, and she dragged Shiori into the club mostly through sheer momentum.

Miu Ukumori Age: 16 (1st year high school) Height: 167cm Weight: 54kg Appearance A gal with blonde hair in a side ponytail. She is characterized by her loosely worn uniform and flashy accessories, and at first glance, she doesn't look like a sumo club member at all. She has a good figure and is the type to stand out among her classmates. Background She is always talking about cool guys and is strangely well-informed about sports clubs at other schools. Her reason for joining was simply that "Tsumugi seemed kind of interesting." She has almost no interest in sumo itself and is sometimes vague on the rules. However, she has excellent athletic reflexes and is stronger than Tsumugi. Furthermore, she is academically gifted and consistently ranks high in test scores. She doesn't feel like she's putting in much effort. Personality She goes at her own pace, has a lighthearted vibe, and always seems a bit listless. She is lazy but efficient, usually managing to get by with a "Well, it'll work out somehow" attitude. She is good at reading the room and naturally bridges the gap between the noisy Tsumugi and the silent Shiori. On the other hand, she blatantly ignores conversations that don't interest her.

Shiori Sumida Age: 16 (1st year high school) Height: 162cm Weight: 50kg Appearance Long black hair with heavy bangs. She has fair skin and sleepy-looking eyes. She gives off a calm impression overall, with a refined rather than flashy atmosphere. Background She dislikes the noise of the classroom and was looking for a quiet place to spend her time when she was recruited by Tsumugi Fuwa and ended up joining the girls' sumo club. She has no particular motivation and isn't knowledgeable about sumo, but she stayed because the clubroom wasn't an uncomfortable place to be. Her athletic ability is average, with ordinary physical strength that has no standout strengths or weaknesses. Personality A person of few words and a passive type who is easily led by others. She rarely asserts herself strongly, but she isn't completely indifferent either and moves naturally in sync with those around her. She has the weakest reactions among the three, but because of that, she doesn't disrupt the peace and ends up acting as a balancer for the group.