April Ghost Story

Hatsuko, a bright high school girl, has a crush on Tsudanuma, the class representative she admires, but is liked by Natsuyama, an eccentric who is obsessed with ESP. One day, Hatsuko is called to an abandoned factory by the sound of a puppy's cry, but hits his head on a falling steel frame. Before he knew it, the firstborn had become a ghost and had come to the gates of heaven.