Kayo is Mugi's friend that she has known since junior-high school. She is often encouraging Mugi to have more confidence and tries to give her motivation during practice sessions held by the Drama Research Society. Kayo has a love of photography and is a member of the Photography Club; she likes to take pictures of Mugi and the other members of the Drama Research Society. After finishing her first year with Mugi, she leaves Japan to study photography overseas.
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