Buzou High School Freshman. Library committee member and Shiki&#039;s classmate. A girl who is obsessed in quizzes and an expert in buzzer pressing. She discovered Shiki&#039;s potential to become a great quizzer and convinced him to join the school&#039;s quiz club and explore the world of quizzes.    Aside from her ability to buzz in quickly, she has considerable knowledge in etymology.

Bunzou High School is welcoming its new first-year students. One of them, Koshiyama Shiki, is chosen to participate against his will in an impromptu fast-buzzing quiz meet by the president of the Quiz Bowl Circle. As a quiet boy who loves reading and doesn't want to stand out, Shiki is overwhelmed, but his classmate, Fukami Mari, is able to hit the buzzer and answer questions before the full question is given. As he watches her, Shiki realizes that there's a point in each question where the answer becomes certain.
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(Source: Crunchyroll)

A J-drama actress and member of the band 9nine. She makes her voice acting debut in Star Driver.

As soon as he entered high school, the first year student Koshiyama Shiki was invited to the mysterious Quiz Study Group led by his senpai. What will Shiki run into when being dragged along by his classmate Mari into the dazzling world of competitive quizzes?!<br>
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(Source: ComicWalker)

Mari Fukami