Sometimes, the calmer you look on the outside, the more turbulent you may be on the inside, even though you don't know why the wind and waves are blowing. High school and college, walking between understanding and confusion, Lin Chun, Hua Zhi, why, Zhang Xiaofan, let me ask you, what do you like? What are friends? When we are young, we cannot make promises, but maybe the ending is not what we are pursuing. What we want is to move forward, but when we were young, we believed as surely as we did.