A seventeen-year-old depressed teen, whose mother died at an early age and whose father often disappears, meets a small stuttering boy frequently abused by his family and bullied by schoolmates. Day by day, they become each other's sole friend, with gradual sparks of admiration. But the tumultuous course of life does not permit them a peaceful existence. The past surfaces, and the feelings of the two boys quietly change…

A mysterious past. A roving existence. Two insecure teenagers.

After both their fathers disappear, a detailed investigation begins to peel back the layers of the truth– what will the future hold for Yan Hang, who disappears without a word, and the kind-hearted Chu Yi? When they meet again years later, what path will they take?