Sayaka Igarashi  

, 五十嵐 清華

The Secretary of the Student Council is an intelligent and serious individual who deeply cares about school and her role on the council. She is fiercely loyal to Kirari Momobami, the president of the council, and will do anything for her. While she may appear reserved and calm, her actions speak louder than words - as seen when she subdued a violent student, Jun Kiwatari, during the debt recollection game. Despite this, it seems that she harbors feelings for Kirari, expressing concern and sadness upon her departure without explanation.