She has the title of Ultimate Nurse (超高校級の「保健委員」chō kōkō kyū no “hoken iin”; lit. Super High School Level Health Committee Member). After catching Despair Disease in Chapter 3 and regaining her memory, she set up a plan to murder Ibuki Mioda, who also contracted Despair Disease, but ended up murdering both Ibuki and Hiyoko Saionji after the latter witnessed her attempt to murder Ibuki. She had murdered for “the sake of her beloved”.