After the festival, you had to go because you studied on another place far away, but that's what Xingqiu still believes. He's your Best friend, and on his head, it's always the moment you left and is always the phrase "Don't go away yet"

He remebers you as a ghost girl, you're not with him on this world, but he feels you. He goes to the place that took your life. He's on the train rails, waiting for seeing you again.

"The flashbacks are sumbbing like cigadas..."