The supreme killer of the Chinese Empire, Xue Yin, is frightened by his name. The boss saw that she had no relatives since she was a child and lived alone on the streets, so he adopted her as his adopted daughter. Trained her into a powerful killer. Xue Yin's methods were outrageous, and there were so many people vying to buy her life. She liked someone and promised to marry her when she got the Dragon Song Ring, but he lied to her. He was obviously with someone else, and this person was still her good sister. He was just using her. When she was about to die, she swallowed the Dragon Song Ring and died with him. Travel through the Demonic Continent after death.
Concept: time travel romance