Mitsuba's elite older sister.
Mitsuba knows Shinoa prior to joining her squad, and she is irritated to have to work under her. However, the two girls come to get along and become very close friends. Mitsuba appreciates her honesty, and Shinoa addresses Mitsuba as "Mitsu." They are the only two girls their age in the Moon Demon Company. They later begin causing trouble together and doing pranks on the boys. Although she comes from the prestigious Hiragi family, the family does not support her. Mitsuba acts as her second-in-command.
Mitsuba originally hates Yuichiro for his disobedience and inability to think things through. Shinoa mentions that this behavior reminds Mitsuba of how she used to be before she got her own squad destroyed. They later come to get along. Shinoa teases Mitsuba and says she will fall in love with Yu since they fought so much at the beginning, but Mitsuba denies this. She blushes when they talk, implying that she does have a crush on him.
Mitsuba was not afraid to speak up to him when she disagreed with his choice to put her on Shinoa's squad, which is full of rookies.
Another member of Shinoa's squad. When Mitsuba tells him to call her "Master," he rejects that order. He is skilled at home-making and takes over Mitsuba's job cooking.
A quiet member of the squad. Shinoa and Mitsuba often pretend he is super-innocent and act like they need to protect him from the clutches of Kimizuki and Yu, but they also sometimes blame him for coming up with ideas for their pranks.
Makoto is the leader of his squad in the Moon Demon Company. He fights alongside with Mitsuba.
She defeats Mitsuba and drinks her blood during the battle at Shinjuku.