A depressed girl named "Chen Ling'er" who loved literature jumped into the lake out of frustration, but unexpectedly discovered that she was not dead.
Not only is he not dead, his soul can travel through the tunnel of time at will, changing what happens in the future.
She tried her best to return to the real world, but she discovered a surprising secret along the way...
Intention: If a person faces the sun, there will be light in his heart