Following his awakening from years in cryogenic sleep, Reito steps into a profoundly altered society where men are scarce and expectations run high. While offered a life of comfort in exchange for helping restore the population, his focus stays fixed on tracing the whereabouts of Erisa, who vanished years earlier. As he begins navigating this unfamiliar setting and its social pressures, faint leads about her fate emerge, strengthening his determination to locate her amid the surrounding temptations.