She is a teenage girl of average height, with black hair tied into a ponytail and possesses a well-endowed figure. She occasionally wears glasses, to show a serious side to her.
She is shown to be a very kind, yet hyperactive person and is known for having fun. She tends to refer to herself in the third-person, the reason for this is not. Despite this, Hasuki is very intelligent and when tutoring her classmates, she adopts a more serious attitude and puts her classmates in line.
She has deep romantic feelings for her classmate and childhood friend Romio Inuzuka, she confessed to him though was rejected after he revealed his love for Juliet Persia. She was hurt and nearly cried about the act, though she kept his forbidden relationship as a secret. She shows that she still loves him and has made herself strong enough to wait for him, should things not work out with Persia.
Because of Inuzuka's relationship, Hasuki has come to associate and befriend some of the members of the White Cats House though she is still annoyed at some of their self-entitled egos or their manners.
She cares for her brother Kougi Komai and teases him a lot, though has reprimanded him on occasion when he gets out of line.
- According to Maru, her crush on Inuzuka was obvious to the whole class.
- Her first name, Hasuki, sounds very similar to Husky, a dog breed.
- She is unaware Julio is really Juliet in disguise.