He was once the heir of a prestigious family, born with a rare dragon bone and celebrated as a martial arts prodigy, a genius not seen in a hundred years. However, his stepmother, driven by ambition, forcibly transplanted his dragon bone into his younger brother. From that day forward, he became a cripple. With the help of his childhood friend, he barely escaped the clutches of his family. But she, in order to protect him, was forever left behind in the events of ten years ago. Now, a decade later, he returns with two goals—revenge and to fulfill the promise he made to her. However, a royal decree of marriage pulls him into a love triangle, torn between two women. From that day forward, he became a cripple. With the help of his childhood friend, he barely escaped the clutches of his family. But she, in order to protect him, was forever left behind in the events of ten years ago. Now, a decade later, he returns with two goals—revenge and to fulfill the promise he made to her. However, a royal decree of marriage pulls him into a love triangle, torn between two women.