Childhood sweethearts Yang Linhan and Han Yi broke up four years ago when Han Yi returned to the family. After graduation, Yang Linhan became the disciple of a university teacher and ran a law firm together. Four years later, Yan Xi, her childhood friend, went to Japan to study in Japan without telling her family. She met Chen Xiatun from the Chen family in City A. Chen was originally engaged to the daughter of a Japanese organization. For Yan Xi, he gave up his family's future in City A, and he and Yan Xi had a son. However, Miss Keiko of the Yamamoto organization hated the Chen family and has been sending people to hunt down the two. The two had been fleeing in Japan. Later Linhan went to Japan at the request of Yan Xi's father to bring Yan Xi back. However, Yan Xi had a heart disease and contacted Chen Xiatuan on Christmas Eve. After giving birth, she gave the child to Linhan and died. When Han Yi returns, the past between the two begins to be opened up again. Han Yi's life experience seemed to have only increased the barrier between the two. The death of his friend Yan Xi made Yang Linhan determined to leave. Shao Ming's mysterious disappearance after his proposal gave the two people a chance again. After all, this was a desperate gamble, or an arrangement that was destined long ago.