In a serene district of Tokyo, seven students shun school, retreating to their dim chambers to avoid their social circles. Yet, a peculiar occurrence alters their isolated existence—mirrors in their rooms gleam, transporting them to a fantastical castle reminiscent of a Grimm fairy tale. This mysterious haven, devoid of sustenance but brimming with electrical outlets, is ruled by an enigmatic masked girl known as the Wolf Queen, offering solace and diversion during school hours. Within the castle's confines lies a coveted key promising a wish and a trail of hints to locate it, with a crucial stipulation: the key must be found by year's end, and departure by five every evening is imperative to avert dire consequences. As they unravel the enigma, a poignant revelation surfaces—only through candid storytelling can salvation be secured. Thus unfolds a poignant narrative of seven souls ensnared in a web of isolation and misconceptions, liberated at last by the redemptive forces of camaraderie, compassion, and selflessness.