Seven years ago, he entered Xu Jiaqi's life, helping her overcome her fear of men and giving her humiliated mother a chance at a new life. Again and again, he told her he liked her. But just as she was ready to accept him, he left without a word.
When they meet again seven years later, he says, "Sorry, we've never met."
Both are pure in love, and each is the other's first love.