Two hundred years after demons appeared and civilization collapsed, humanity survives through chaos with the help of “Genetic Awakeners.” Kousaki Suguru, once a top student, now struggles to support his sick sister. After dying while saving a child, he is revived by a mysterious pendant and contracts with a Flame Demon. <br> Branded a “Demon Contractor,” his power comes at the cost of others’ tears. Hunted by the government and targeted by a secret organization, Suguru must fight, sacrifice, and uncover the hidden truth behind his birth.