Storyline

A mysterious disease - white sleep takes place in the Arai city. People suffering from it fall into a deep coma and a mysterious birthmark appears on their hands. Several days after the first case of the disease, hundreds of sick people die simultaneously in one evening. After this event, more people get sick the very next day, including mother of our main character - Ares. During a visit to his mother in the hospital, Ares falls asleep. He awakens in front of a powerful being - Beliar. The demon explains to Ares that he became his player in the game against the second gamemaster Leviathan. To save his mother and hundreds of people in white sleep Ares must win the demonic game.