My Best Friend and I Beneath the Setting Sun

The school has mysteriously vanished, and a strange face hangs in the sky. Where am I now? Death makes no sense, and the people around me are acting strangely. Where do I go from here?

Shao Kangheng, an ordinary high school student, never imagined that the moment on his way home from school yesterday would be the last time he saw a "sunset."

(This is a gender-swap story with the male second lead.)