Tonari No Jii-sanTonari no Jii-san; トナリノジイサン; The Old Man Next Door

A young girl named Yuki, living in a small town, continued studying art with the goal of becoming an artist in the city. One day, her sister leaves the town to fulfill her own dreams. Yuki boards the train with her to see her off, but during the journey, she is struck by a strange phenomenon!? Is it reality or an illusion... A chilling horror.