Mori Calliope, known as Death-Sensei, is a Hololive English -Myth- VTuber debuting as the Grim Reaper's first apprentice. She portrays a soul reaper wielding a massive scythe, with a passion for hip-hop and rap. Her content features original music, gaming streams, and collaborations. She has released songs like those in the Odyssey project featuring HoloEN groups. Calliope is recognized for her deep voice, skeletal motifs, and contributions to Hololive events and auditions info.