What is the ending of the clear smoke?

Yingran has returned to the world 3 years later, but there is no love for Chen any more. Thirteen is everywhere in her heart, and Thirteen works hard to overdraw her life while keeping Yingran's agreement. He is alive intact, but he has lost his fresh soul. What's left is just an empty shell.

he doesn't want to keep her waiting too long.

if she can make it here, then he can certainly go to her world. He believes that he has such a strong willpower, and he believes that everything will come true eventually. And the ending is also beautiful, thirteen went to Yingran's side, and Ke Yinglei, who returned to ancient times, fell in love with fourteen.