A strange disease is linked to a mysterious hole leading to an underground world: the Asylum. "Sleepers" go into this world to fight strange monsters and recover unknown resources. Now, a young boy who dreams of being a hero has arrived at the Asylum.
Its cause was believed to be the massive
نعتقد أن السبب وراءه  
هو عالم هائل
Man vermutet ihre Ursache
Se creía que su causa era
Elle semble provenir
d’un gigantesque monde souterrain,
Acredita-se que a causa