Kasumi is a kind hearted, hard-working girl who isn't as jaded as some of her classmates. She's much more restrained, down to earth, and behaves otherwise normally. The reason she tries so hard to succeed as a jujutsu sorcerer is that she wants to support her two younger brothers, showing her caring and steadfast attitude. She constantly calls herself useless and genuinely fears that her weakness causes trouble for others trying to protect her. 