A childhood sweetheart's first love on campus. From school uniforms to wedding dresses, I slowly fall in love with you. You are the little childhood sweetheart of my youth and the white moonlight for the rest of my life. The free and unrestrained young man Bai Yunfei meets the free-spirited girl Jian You. They met when they were young, overcame all obstacles, walked in the innocent campus, and had a broad mind in the world. When we meet again, things have changed. He had seen her as a flamboyant and domineering person at the age of five, and he had also seen her as a withdrawn Pingting at the age of fifteen. He had seen her bravery and strength in the past, and he had also seen her depression and low self-esteem later. The worries and panic at that time are on the scratch paper, in the glances from the corner of the eye, and in the deliberately created encounters in the corridors. They have gone through childhood sweethearts, through mutual dislike, through long-term companionship and unconscious affection. Amidst the many changes in family and dreams, he has always regarded her as a treasure. This classmate, please don't disturb my girlfriend's study!