Nanami Tsubomi is a minor character in Kakegurui.
Nanami has short dark brown hair, part of it being held on the right side of her head by a pink hairband, and green-brownish eyes. She wears the standard female Hyakkaou Private Academy school uniform which consist of a red blazer with black trim on the cuffs and around the neck, and is decorated with gold buttons that is complete with a black tie. She wears a gray colored skirt with patterns on it, black colored panty hose, and brown loafers with black soles.
She used to have very long, and wavy hair, but it was cut by Jun Kiwatari and his group, when they decided to bully her due to her status of being a housepet.
At the beginning, Nanami is shown to be very quiet, shy, and quite anxious person. She is terrified of Jun Kiwatari to the point where she is completely subordinated to him, being willed to lose her chance of paying her debt, and thereby regaining her status of normal student, and still being a housepet instead.
After meeting Yumeko Jabami, who convince her that her submissiveness to unreasonable people like Jun is wrong, Nanami's personality has changed. She regained will of fighting for her own good, and stopped feels anger, sadness and dismay, while still being a nice and kind person.