Makkii-senhai is a first-year high school student at Shuchi'in Academy and the president of the Tabletop Gaming Club, As the president of the Tabletop Gaming Club, Kozue loves games. She also has a somewhat sadistic sense of humor, as shown by her cheerfully torturing Miko while gathering audio for their class' event during the culture festival. She is shown to be very intelligent, regularly ranking among the top ten students in the freshman class during the end of semester exams.
