Chiharu Aikawa is a teenage girl with blue hair styled in a straight bob cut and blue tareme eyes. She possesses a slim physique and pale complexion. Her attire consists of practical, school-related clothing including aprons, hairpins, hats, jumpsuits, neckties, shorts, skirts, and uniforms.

As a 10th grader at Ryouzuki school, she actively sought and holds the position of boxing club manager. A deep interest in boxing drove her to study diligently for admission to Ryouzuki, motivated by the school's boxing reputation. Chiharu exhibits a polite demeanor and a bright, energetic personality in this role.

She supports the boxing club through consistent hard work and a cheerful attitude, engaging directly in boxing-related activities as part of her duties. Her interpersonal interactions reflect a friendly and kind nature.