Sayo Yotsuba

Sayo is a young girl with long waist-length orange hair and blue eyes. She is taller than the average girl, and her body is also more developed than some of her peers'. Her main outfits consist of the climbing team uniform as well as her school uniform.

As the president of the Sports Climbing Club and an accomplished, experienced climber in her own right that came in first in a previous climbing competition, Sayo acts as a very motherly figure to the rest of the team. She is very encouraging and doesn’t break her well-maintained composure very often. She is very logic-driven, which is evident when looking at her climbing abilities. Overall, she is a good caring friend and a fantastic climber, who rarely lets her emotions get in the way of anything she is doing.

(Source: Climbing Girls Wiki)