With him being a classmate in elementary school and high school, she finally made it to college and could no longer be judged as puppy love by her parents. She could finally propose to him, but she didn't get any response. Due to an accident, the lives of both of them have undergone tremendous changes, and they are no longer as simple as before. In this complex environment, can they maintain their true intentions? Is this the end of the fate, or is it just a thread of a thousand-mile marriage?