Young Master Gu in the capital is a low-key person, but he runs away from a grand wedding, violating the marriage decreed by the general's grandfather. The general's grandfather demoted him from major general to the most ordinary soldier in anger. But in these most ordinary days, Mr. Gu met the person who was entangled with him in this life but could not let go---Chen Chen. One is a domineering soldier and the other is a reserved and sinister teaching assistant. Two seemingly unrelated people meet each other driven by fate, but in the end they are no match for fate's tricks. They decide whether to stay together regardless of the secular world, or to forget each other in the world. In the end, after all the efforts I made to make my vows, it was still difficult to say I love you again.