Kokona Sunohara

About

A first-year student of Shanhaijing Senior High School, Kokona works as an instructor in the "Meihua Yuan" disciplinary support department.

Although young enough to still be attending elementary school, she has been recognized for her excellent learning ability and has been given the authority of an instructor.
The students affectionately call her "Kokona-chan", but Kokona isn't very happy about that.

(Source: Blue Archive Wiki)