A little kid from time travel clings to a modern student, a little boy who lost his father and raised a mysterious identity according to his father's will. How should she respond to him whom she has longed for for a long time? Could it be that this is her child? Is his arrival unfortunate or lucky for her? How will she have both love and family affection? What unexpected things will happen to her in the future? Who will hold her hand and give her an eternity.