Igarashi, Sayaka

五十嵐清華

She serves as the Secretary of the Student Council and acts as the right hand of the Student Council President. Sayaka is determined to become Kirari's 'Number 1' and regards Yumeko as a plague. Intelligent, serious, and deeply concerned with the school and the Student Council, she is endlessly loyal to the President, Kirari Momobami, and will do anything for her. It seems she has a crush on Kirari, evidenced by the concern and sadness she expressed when Kirari left without saying where she was going or what she was doing. Although she appears reserved and calm, her subduing of the violent student Jun Kiwatari and informing him of his new debt in the debt recollection game reveal that she is just as terrifying as the rest of the Student Council.