Karen Yamashita

Nanami Karen Yamashita is a captain of Kaichimiya Central School. She serves primarily as a field commander. She is an S Rank Fighter, known for wielding the legendary Glitterblade, a magical artifact that runs in her family for generations.

Appearance
Karen is a tall, fit girl with long brown hair. She wears a big black coat at all times, which houses the large masterwork sword that hangs at her waist, or sits in her hand.

Personality
Karen is a happy-go-lucky sort of girl, who lives to have fun. She's whimsical and prone to jumping on plans spontaneously. This makes her quick to make friends, but just as quick to move on to the next group. Despite this, she doesn't forget those who have befriended her in the past, and her good will towards them always holds strong.

Abilities
Karen works hard to avoid engaging in direct, public confrontation, and so the details of her abilities are unknown. All that is known is she uses the Glitterblade in every fight.

Soma Yamashita
Soma and Karen are brother and sister. They live together with their parents, but otherwise don't spend much time together. They both learned under different instructors, and spent most of their childhoods apart. Despite this, and they're major personality differences, they get along well and care about each other a lot.

Trivia

 * In the original her first name of Nanami was primarily used, however for the translation the more English-sounding Karen is used.
 * Her nickname "Manager-San" is a reference to the "Karen" being a stereotypical name for women who want to speak to a manager.