Akira is a teenage girl with a voluptuous build. 160 cm height while being 18 years old. She has short hair whose coloration varies between black and dark brown. Her eyes have tiny pupils and no visible iris. While her eyes are usually colored black, they are also depicted as amber-colored. Akira has a noticeable upper bust, a feature acknowledged by several characters, and an angular face. At home, she is always shown wearing a sleeveless shirt and pajama shorts. Akira, despite not having fun at school, is a mature and disciplined student who obediently follows her school duties and takes her education serious. She is approachable and perceptive, and maintains closes relationship. As a little girl, she was lively and talkative but later became gloomy, blunt, and snarky. Reasons for that are her boring time at school, where she puts on an honor student facade and feels alienated from the girls as she used to spend her time with boys. Another factor is her situation at home. She doesn't seem to have a good relationship with her family and does nothing but repeat the same daily routine. At one point, she "wasn't able to bring herself out anymore" and seems to suffer from depression. She gets grossed out when someone says something too positive, like Kou praising Mahiru or the latter talking about "liking someone." Recently, her lively side has resurfaced to some extent. For the most part, Akira is a "by-the-book" person who rigorously follows school protocol and has a strict sleeping schedule that involves going to sleep early and waking up late, so she can take a walk before going to school. Akira has a relatively carefree attitude. While she's usually very cool-headed, she can also quickly feel overwhelmed by a situation and lose her cool, particularly if she feels scared or embarrassed. She can be hot-tempered and has no qualms about using physical violence against people close to her when irritated.