Hell Teacher Nube Season 1 Episode 41 I Want To Be Friends...The Mysterious Classmate, The Melodic Apparition ( Air Date 1997-04-26 ) Genre Animation, Sci-Fi & Fantasy, Action & Adventure category. Overview "A model of the human body in a science class inherits a spirit and doesn't realize that he isn't an human being. He wants to become friends with Nube's classmates, but they are terrified of him.".