She is a teenage girl of average height, with black hair tied into a ponytail and possesses a well-endowed figure. As stated by many members of the Black Doggy House, she is very attractive and many are jealous of her closeness to Inuzuka. She occasionally wears glasses to show a serious side to her, especially with mid-terms. 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, though the reason for this is unknown. Despite this, Hasuki is very intelligent and when tutoring her classmates, she adopts a more serious attitude and uses a masculine speech for her speeches to put her classmates in line. She has deep romantic feelings for her classmate and childhood friend Inuzuka but was hurt after knowing his relationship with Persia, though she kept his forbidden relationship as a secret from their peers. She shows that she still loves him and has made herself strong enough to wait for him, should things not work out with Persia. Before she met Inuzuka, she was an introverted child with good grades. Because of her introverted attitude, she had no friend as she was bad at socializing. When she noticed Inuzuka having difficulties for a test, she wanted to help him. When Inuzuka started to think that she was a genius, he wanted her to help him study. After he got a note of 90%, he thanked her and wanted them to be friends. Because of those words, Hasuki started to change and began getting friends.