Bokusatsu Tenshi Dokuro-chan

Pi piru piru piru pi piru pi
Along this mysterious melody, an "angel" comes to Kusakabe Sakura-kun's house and beats him to death. Her name is Bokusatsu Tenshi Dokuro-chan!? From now on the every day fantasies of sakura-kun's life will be replaced by events more strange and interesting than he could ever imagine...