"There's no way to fall asleep. Counting sheep, hypnosis, or sleeping pills, there's no way to fall asleep."
"You know they're there, but you can't see them. ... At night, I can't see anything."
An insomniac girl, Gu Tian, meets Ye Mu, a ghost with night blindness.
"... If you can't sleep, I'll talk to you. Ghosts don't need to sleep anyway..."
"No matter where you go, I will definitely find you and take you home."