In this prosperous big city, Chen Kexin looked around and felt helpless for the first time.

Once and once again, she came to their frequently visited places alone from morning till dusk. However, she could not find any trace.

She listlessly looked up at the sky.

The pale moon was not bright. A few stars shone faintly. Sometimes, the moon was covered by dark clouds. The sky was always overcast. As strong winds blew, it was colder and colder. ...