The theme of this story is about the imprint of life.
I think that no matter how stubborn a person is, it will inevitably change due to circumstances and people. In a thousand-mile chase, Qi and Gu left such an indelible mark on each other, and this mark not only changed the fate of Qi and Gu, but also their character and heart, and affected their subsequent life choices. Just like, even if Sun Wukong returns to Huaguo Mountain after being driven away by his master, he will not be able to become the Monkey King he once was with the tightening curse.
Conception: