Death Return: Strongest By Contract

Two hundred years ago, the world was suddenly filled with spiritual energy, demons appeared, and civilization collapsed. Humankind, exposed to this threat, was living through an age of chaos. In the midst of this, those who adapted to the spiritual energy awakened as "gene-awakeners," gaining supernatural powers and throwing themselves into the fight. Although Suguru Mitsuzaki was a prodigy who once achieved the top rank in the unified exam, he was working multiple jobs to earn money for his sick sister's medical expenses. One day, Suguru, who lost his life saving a child caught in a demon attack, is guided to the "Demon Tree" by a mysterious pendant he found in his childhood, and he forms a contract with a fire demon. The price of the contract is "the tears of others." Burdened with the fate of hurting someone every time he gains power, Suguru is resurrected as a "magic contractor" and continues to fight, shaving away at his own life to cure his sister's illness. Meanwhile, the government organization "Demon Defense Department," which seeks to eliminate magic contractors, and the mysterious group "Demon's Claw," which tries to draw him into their ranks, begin to move in the shadows. In a world where justice and evil intertwine, what will Suguru protect, and what will he sacrifice? And what is the truth hidden in his birth?