Mori Calliope

Mori Calliope is an English-language Virtual YouTuber (VTuber) and rapper affiliated with hololive, debuting as part of the first-generation English branch alongside Takanashi Kiara, Ninomae Ina'nis, Gawr Gura, and Amelia Watson. Presented in-lore as an apprentice Grim Reaper who became a VTuber to collect souls, her persona blends gothic, death-themed imagery with a sweet speaking voice that contrasts sharply with her hardcore rap and vocal delivery.

Unlike most VTubers who focus primarily on streaming, Mori Calliope has built a substantial original music career, releasing rap-driven tracks that span hip-hop, pop, rock and electronic influences. Songs like «DEAD BEATS», «Red», and «失礼しますが、RIP♡ (Excuse My Rudeness, But Could You Please RIP?)» showcase her aggressive flow and dark, theatrical lyricism, while tracks such as «Live Again» and «end of a life» reveal a more melodic, emotionally layered side of her songwriting.

Her work has made her one of the most musically prolific figures in the VTuber industry, releasing full EPs and albums rather than one-off singles, and collaborating with producers across the Vocaloid, hip-hop and J-pop-adjacent scenes. She has become a defining figure not just within hololive but in the broader intersection of virtual idol culture and independent rap music.