She has a large following on social media, with over 1 million subscribers on YouTube and over 600,000 followers on Twitter as of September 2021. Outside of her music career, Mori Calliope often streams video games on her YouTube channel. Mori Calliope has released several original songs, including 'Excuse My Rudeness, But Could You Please RIP?', 'ECHO,' and 'DEAD BEATS.' Mori Calliope's character is a reaper who speaks English and Japanese, and she is known for her deep and raspy voice, which is often used for singing covers of popular songs on her YouTube channel. She is part of the Hololive Production agency and debuted on September 8, 2020. Mori Calliope is a virtual YouTuber (VTuber) and singer. Part 4: FAQs about Mori Calliope AI Voice TopMediai for Mori Calliope Text to Speech Part 3: Create Calliope Mori AI Voice with Best Voice Generatorsġ.