Suzu is a petite girl with fair skin. She has long, wavy brown hair that she likes to wear in different styles. No matter the style, she likes to keep her bangs out of her face. She has round golden eyes with vaguely cat-like pupils. She isn't very expressive, so she can mostly be seen with a blank or disinterested look on her face. She has surprisingly good posture from being a dancer.

She can often be seen wearing her school uniform, which consists of a white sailor-style shirt, a navy bow, a navy skirt, and black socks. While doing club activities, she wears a red tracksuit and a black shirt beneath. Her casual clothes often consist of girly clothes often with bright colors.

Suzu is mainly characterized by her air-headed and disinterested personality. She is easily distracted and loses interest in things quickly, which means she often doesn't finish her tasks and she wanders off a lot. She doesn't put a lot of effort into things that do not interest her, which is almost everything. She could even be described as lazy. She is usually inexpressive, not showing much emotion when she speaks. She is very free-spirited, and she doesn't normally listen to people or follow directions. There are only a few people that she consistently listens to, including Kuroo and her sister. She can be a bit childish when it comes to things like this, sometimes purposefully not listening to someone just to spite them. She is an honest person that always says exactly what she means, even if what she says can be brutal. She usually doesn't mean any harm by it, but sometimes she can be a bit of a devil on purpose, although she denies it.

She has a surprisingly good memory when she tries, despite her absent-mindedness. She is good at remembering routines and such, she just doesn't put effort into remembering what she doesn't feel like remembering. It has been said that she would probably do really well in school if she would just put effort into remembering the material she learned. She mostly just does the bare minimum of work, but does surprisingly well on tests. She is also very dedicated to the people she considers her friends, though it takes her a bit of time to warm up to people. She puts in the most effort for people she considers her friends, and she becomes more expressive around them. She can also be quite eager to get praise from people she respects, sometimes doing things just to earn that praise.

Even at a young age, Suzu was a free spirit. She was constantly wandering off and getting lost, so she had to be watched at all times. She always seemed to move to the beat of her own drum, not following anyone's guidelines. She often got in trouble for not doing as she was told, simply because she didn't feel like it (though she eventually overcame this). The only person she seemed to somewhat consistently listen to was her older sister, Yori. However, she also had feelings of jealousy and inferiority towards her sister. Yori was smart and talented in everything she did, and she was seemingly perfect. Her parents wished for her to be smart and responsible like her sister, so they set high expectations for her. Suzu always felt inadequate, thinking she could never be as good as her sister. Because of this, she began to feel tense around her sister, avoiding her when she could. Also because of this, she stopped putting effort into most things she did.

Suzu didn't seem to take much interest in anything or anyone. She could have even been described as selfish and lazy. She didn't have any goals or ambitions, and she didn't apply herself to anything. The only thing she appeared to really enjoy doing was dancing. Seeing the interest she had for this, her parents signed her up for dance lessons. Since then, she has improved to become an exceptional dancer. She has performed in dance recitals, and she did well in competitions. However, she had some limitations placed on her because of her height. Most dancers weren't as short as she is, so she was often overlooked. However, she didn't mind this much, as she wasn't interested in being competitive. She only did it for fun.

In junior high at Keisetsu, her sister was the boys' volleyball club's manager. Suzu also attended Keisetsu after her sister, but she wasn't involved in any clubs. Still, she was well known as Yori's younger sister. Yori was also the boys' volleyball club's manager in high school, where she attended Nekoma High School. She proved to be a good manager, and the boys were fond of her. When she graduated, she needed to find a replacement. She asked Suzu to fill her position, as the younger girl would be entering high school as Yori was leaving it. Suzu had no interest in volleyball, so she didn't want to do it. However, her sister begged, and she couldn't find a good reason to refuse, as she wasn't planning on joining any other clubs. She eventually accepted. She was definitely not as good a manager as her sister, and it was clear that she wasn't too keen on being there in the beginning. She didn't pay attention during practice, and she often had to be corrected in her tasks. She didn't understand how anyone could love a sport that they didn't even play, like her sister. However, as she grew closer to the members of the team, she began to want to put more effort in so that she could help them. While she still wasn't overly enthusiastic about volleyball, she did her best for the players on the team she had come to love.

After high school, she moved into an apartment with Kuroo and began attending college to be a video game animator. She graduated a year early and began working at a large video game development company. She was seen as a very talented animator, and she used her background in dance to help her create fluid and lifelike animations.

• Her favorite food is raspberry sherbet.
• Current concern (2012): Her friends invited her to go to the beach, but she can't swim.
• Current concern (2018): Kuroo keeps making fun of her when she asks for help reaching things that are up high.
• Her star sign is Sagittarius.
• Her worst subject is math, and her best subject is history.
• Torikai (鳥養) means "bird, nurture," and Suzu (鈴) means "bell."
• She used to wander off a lot as a child, and she was so small that it was hard to find her, so her parents made her wear bells. Yaku suggested that they do this to her now.
• She seems to have more sympathy towards animals than she does towards humans.
• She is a light eater, and she doesn't like ordering meat at restaurants because she feels like she can never finish it all.