Yuuri Wakasa

Serving as the dependable leader of the School Life Club, this former Megurigaoka Private High School student acts as the group's protective big sister. Known affectionately as Rii-san, she maintains a disciplined approach to survival by meticulously tracking essential resources like food and electricity. Her personality is defined by a calm, mature, and serious demeanor, ensuring her comrades stay safe. While she is deeply caring, she remains a strict authority figure who won't hesitate to reprimand anyone risking unnecessary danger.