Lin Sangxia had liked her brother next door, Song Sinan, for many years. She studied hard just to be able to skip a grade and be in his class. She never said a few words to him. In Song Si's eyes, she was just told by her parents to look after the sister next door. In her senior year of high school, she was only sixteen years old, but he turned eighteen, and he made an agreement with another girl that they would be together if they were admitted to the same university. Later, they went to the same university, and Lin Sangxia also enrolled in the same school. Later... Song Simon was going to marry that girl, and Lin Sangxia's secret love ended in vain...
Intention: Secret love cannot be responded to