When the mirror appears, it's said that the mind has reached its breaking point. For Ryo Kobayashi, a teenager consumed by the darkness of his own world, the mirror's emergence is both a curse and a catalyst. Alongside seven other individuals, each with their own demons and despair, Ryo is drawn into the mirror's abyss and transported to a realm both mysterious and terrifying. The eight strangers must navigate this eerie landscape, confronting life-threatening challenges that push their sanity and resolve to the limit. As they struggle to survive, they begin to unravel the secrets of this twisted world and the true purpose of the mirror. Will they be able to overcome their inner turmoil and work together to escape, or will they succumb to the horrors that surround them?