Lin Yu and Xie Yi, two teenagers who were deeply hurt by their original families, met by chance on the campus rooftop. One is escaping from a domestically violent stepfather, and the other is escaping for peace, with the same lonely undertone reflected in each other's eyes. From the initial silence to sharing secrets and wounds, they became each other's only light. Xie Yi's mother is seriously ill, Lin Yu's stepfather is forcing her, and the cruel reality is pressing harder. Xie Yi clashed with his stepfather to protect Lin Yu and was punished with a demerit. In the end, he used the lie of "going south to find his father to make money" to defraud Lin Yu of his scholarship, but in fact he was sent to a juvenile detention center due to the price of conflict. Lin Yu waited for many years to take the exam and leave, but only received a death notice from Xie Yi - he died of serious injuries while protecting a weakling in a fight. Many years later, Lin Yu became a middle school teacher. When grading an essay, he read a student's "My Dad": In the article, his father had a scar on his arm and was always waiting for a friend named "Yu" to come back. At the end of the composition, the student's name is written "Xie Nianyu".
Purpose: Oppose school bullying and domestic violence