Yūki Izumi, a 25-year-old firefighter at Sakuragaoka Fire Station, works alongside the series’ male lead. Towering at 187 cm with a muscular build, he sports light olive hair, brown eyes, and a distinctive birthmark. His vibrant energy and cheerful demeanor position him as the group’s mood maker, lifting spirits with ease. Outside work, he dedicates time to his dog, Sayaka, and openly pursues romantic connections, affirming his single status. Interactions with others highlight his professional dedication and camaraderie-driven dynamic within the firefighting team.