The fate of Su Nian and Jiang Yu was tied to the crooked sycamore tree at the entrance of the old alley - she was the "Sister Niannian" who was two years older. She drove away the bad boys who bullied others and gave him half of the breakfast milk; he was the clingy little follower who saved his pocket money to buy her favorite plum candies and lay on the window sill waiting for her to finish school. During their college years, ambiguity was quietly entwined like a vine, and the two wrote each other into their future drafts. However, Jiang Yu's talent show exploded, and he was suddenly promoted to the top, and the spotlight became an invisible wall.