Forensic doctor Rorschach investigates corruption and dies in a car accident. He wakes up as a lonely white skeleton in an endless prison. This prison has a cruel iron law: whatever force is used will come back to bite oneself, and only the soul contract can break free from the shackles. Proficient in legal deduction, he saw through the rules and traps, subdued the 800-year-old intelligence rat demon, instigated rebellion against the abyss lords, ice lichs and fallen angels, and made a symbiotic covenant with the prison dragon. Using the tide of the blood moon to stir up the situation, he planned to break the three layers of seals of the gods, leading a group of prisoners to break out of the cage. Stepping into the desolate underworld with depleted magic power, he used the Bone Castle as a starting point to build up his power, relying on contracts and tactics to deal with the undead lords of all parties. While expanding the territory to find three fragments of the origin of the underworld to liberate the dragon, he kept in mind the entrustment in prison and vowed to find Chu Ping's daughter with the crescent scar. Instead of crushing with brute force, relying only on human heart and rules to stir up troubled times, a white skeleton will eventually create his own Black Blood Throne.
