No Longer Human - Chapter 2: Ghost

A high school student becomes lost and alienated. Despondent and aimless, he falls into a cycle of self abuse, depression and drugs that taints his life for years. Told in four chapters, each chapter deals with a different point in his life and the final chapter leaves him standing alone - an empty and hollow caricature of his former self. Part 2 of 4

Synopsis excerpt via Kitsu.