She is the number one monster in the four worlds and has unparalleled talent. She is willing to work as a green leaf for her first love, but she is severely hurt by her first love. She decided to take revenge. The best way to take revenge on someone is to live a better life than him. She decided not to hide her talent and dominate the world.
He is the most handsome man in the four worlds. He has transformed into an immortal, but he doesn't like to wield swords and guns. He still likes to save lives and heal the wounded just like mortals. He knows that no matter how strong he is, he can't be stronger than her. As long as he silently protects her, he will be the medicine when she is sick. He was still her medicine when she was hurt. But good medicine tastes bitter after all. How can we get rid of the pain and get the joy.