How to evaluate the pony played by Dong Zijian in Riding the Wind and Waves?

A Lang encouraged the pony's idea. He knows that there is always something waiting for him in this world. In order to be himself, he must choose to leave. Hometown is behind, maybe the road ahead is vague, but the heart is firm. You may be reluctant to part with a friend you once knew, but you can't leave never say goodbye. The dream is uneasy and warm, scary but brave. This is Pony, a seemingly out of place, but touching person.