Su Yu, an art student with dreams, entered the training camp in Hangzhou. In the summer, a class activity quietly kicked off, and her world became splendid with the appearance of Xiao Qin. When they first met, his profile leaning against the window and listening to music was like a young man walking out of a painting, which was deeply imprinted in her heart. From then on, the seeds of secret love sprouted quietly in Su Yu's heart, and every time their eyes met, it was the gentlest throbbing in her heart. However, this emotion is like the colors in her paintings, bright and tinged with subtle sadness. On the road to chasing her dreams, Su Yu silently guarded this young secret love and experienced the sadness and sweetness of growing up.