Chiaki is a calm and quiet individual. She seems, at first, to be a little asocial, but eventually opens up, and becomes a lot more talkative when discussing games. She is quite analytical and enjoys learning new things, leading her to ask questions often. Chiaki seems to not be fully aware of her surroundings while playing video games, as seen when she bumped into Hajime Hinata, and usually puts so much focus on them, that she almost never takes her eyes off of the screen. Even the classroom being destroyed around her didn't warrant her attention when she was playing.