Shall we go see the sea together?

Dou Xiaohai, who had a bad life, had his last wish to watch a BLACKBIRD concert but accidentally lost his ticket and ID card before leaving. On the other hand, Zhong Minghe is also facing the situation of traveling alone after breaking up with his lover. Can Xiaohai, who is penniless and has nowhere to go, get on the train and complete the plan smoothly?