When Shizuma first became Etoile with Kaori, her partner, she's been very cheerful and lively. However, since Kaori's death, she's been locked up in her room always and the cheerful and lively character turned to depressed, almost blank. She was very hard to read and predict which somehow annoys Miyuki Rokujō. Much of the time, she doesn't enjoy the dull work of the Etoile, so she often finds ways to skip her duties.