Four years ago, she quietly left to prepare for going abroad, leaving him clueless. I thought that this was the end of an ordinary high school romance, but I didn't expect that I would meet him when I returned to China for the Chinese New Year four years later, and found out that their family was the same family that my mother had mentioned before when she left in the senior year of high school and moved downstairs to his house...
After meeting again, can she re-recognize the love she thought she had as a childhood sweetheart, and can he continue to write the "future plan" he planned when he was young? What will happen when love, ideals, and life are intertwined with them...