When Mo Li was performing a mission, he discovered that the broken sword "No Return" given by the pavilion master could sense his blood. He realizes that his sister's living soul is imprisoned in the sword. In order to awaken his sister, he kept devouring the memory fragments of the deceased and looking for forbidden psychic skills. On the day when the pavilion master was about to sacrifice Mo Li as the "final vessel", Mo Li took the initiative to detonate the wronged soul in his body, using this as a ignition to ignite his sister's consciousness. With one sword and one soul, the brother and sister started a bloody reckoning against the Underworld Sword Pavilion in the fog of plague.
