After the death of seventeen-year-old Pu Yu's mother, he met Yuan Su in the falling wind chime lane. One escapes from her native family who was forced to drop out of school, and one supports a broken life on her own under the weight of her father's debtor and mother's illness. The two met in rainy alleys, old streets, campuses, repair shops and courtyard lights. Together they experienced monthly exams, competitions, rumors, tuition fees, illnesses, and witnessed the passing of the four seasons together. The lamp at the end of the old street, the soda on the way home from school, the scent of steamed buns in the alleyway in the early morning, and the starlight at night on the top of the mountain constitute the smallest but hottest evidence of their youth. They stood side by side and illuminated each other. They walked through the wind and rain together and walked toward the light that truly belonged to them.
