The Grim Reaper's first apprentice. Due to modern medical care causing a decline in the reaping business, Calliope decided to become a VTuber to harvest souls instead. It seems that the ascended souls of the people who are vaporized by the wholesome interactions between VTubers go to her as well.
That being said, despite the image her hardcore vocals and manner of speech gives off, she's actually a gentle-hearted girl who cares greatly for her friends.
Calliope Mori, officially listed as Mori Calliope (森カリオペ), is a reaper Virtual YouTuber who debuted as a member of the Hololive English -Myth-. Her fans and gen-mates often refer to her as Calli for short. Despite being a sweet-voiced girl with a gentle personality, Calli tends to talk about morbid topics with little hesitation. Her favorite color is red, she enjoys sweets and reaping souls, and she likes watching mafia movies and drinking red wine. Her given name, "Calliope," can be mistakenly read as "cantaloupe," a fruit she vehemently despises. (The correct pronunciation is "kuh-LAHY-uh-pee".)
The Grim Reaper's apprentice has displayed throughout her streams, guest appearances, and music to a have cool, yet serious personality, with a timid side being seen when interacting with others for the first time, such as her senpais. Calli's cool attitude can be clearly observed in most of her streams, as she tries her best to impress the deadbeats with her musical talent and occasional gaming skills. However, she is not afraid to get serious about topics that may be on her mind, and engages in thoughtful discussions with viewers. This combination of a relaxed yet serious personality has earned her the admiration of not only the Deadbeats, but her fellow Holopro talents as well. However, Calli's playful side comes out more evidently during collaborations with her genmates, displaying a side of Calli which viewers don't regularly experience. Calli still remains above all an avid hard worker who is regularly working on projects behind the scenes, often not sleeping for long periods of time.  Despite the challenges that she may face while working on these projects, each one is very much rewarded and appreciated by her Deadbeats each time a new original song or cover is released.
July 16 Twitter account creation date.
July 16 YouTube channel creation date.
Sep. 10 Reddit account creation date.
Sep. 12 YouTube debut and first uploaded video.
Sep. 13 Achieved a 100,000 YouTube subscriber milestone.
Sep. 15 Achieved a 200,000 YouTube subscriber milestone.
Calli's Christmas Catastrophe is a mini-series co-produced by Hololive/COVER & Merryweather. It is co-written, co-directed, and co-produced by Mori Calliope, Carillus & RAINA. Key Art is also being done by Carillus, with assistance provided by Kimiyoto, MinsterDuke & Umaikaze. AT2 was in charge of Death Sensei's character design.  Envornments are designed by Vyragami, and video production was done by Ben Ang & Tris. Oscen was in charge of Sound Design and Engineering, while てにをは & Nakayama Nana produced the serie's Original Music. Title logo was done by Axel. The story follows Calli as she seeks advice on Christmas presents for her fellow HoloMyth gen mates.
Calliope has the following streaming rules in her streams' descriptions:
What is up, humans! Thanks for checkin’ my stream!
If you follow these rules, maybe I'll wait just a bit longer... :}
Be nice to other viewers. Don’t spam or troll.
If you see spam or trolling, don’t respond. Just block, report, and ignore those comments.
Talk about the stream, but please don’t bring up unrelated topics or have personal conversations.
Don’t bring up other streamers or streams unless I mention them.
Similarly, don’t talk about me or my stream in other streamers’ chat.
Please refrain from chatting before the stream starts to prevent any issues.
As long as you follow the rules above, you can chat in any language.
I will read ALL names of super-chats from the current stream in the last 30 minutes of the video, and red super-chats will have their messages read if I deem them appropriate. A 5-minute break will ensue beforehand, where myself and my demon team will check the names and messages. Your patience is appreciated! Thank you!
Her fans are called "Dead Beats" (デッドビーツ).
Meaning / Notes
I'm your Mori, and I hope you'll remember me! PEACE.
A play on the Latin phrase "Memento Mori", meaning "Remember that you will die".
Cr1TiKal was Calli's answer when asked on Trash Taste Podcast which "3D" YouTuber she would like to collaborate with in the future.
Calli sang 2019 Guy and Skynut on one of her unarchived singing streams, both songs originally by Cr1TiKaL.
Calli's original EP "Your Mori" reached #1 on the iTunes hip-hop charts in the USA and Japan.
After over 1 year of technical difficulties being referred to as The EN Curse, Calli decided to coin the term EN's Law. She defines it as the possibility of technical difficulties increasing based on the number of people who are part of the stream.
Calli is one of the Hololive Production VTubers with the following verified accounts:
Mori "YUNG SH1N1GAM1 BO1" Calvin is Calli's male alter ego from dimension 42069. On April 1, 2022 he took over Calli's Twitter account and YouTube channel and released his mixtape over the course of the next two days. On April 2 he had his debut on YouTube after breaking in to Calli's house and tying her up. He wears an outfit similar to Calli's "drip" outfit.
Likes: Chicken sanwichs, real hip-hop, airsoft guns, video games, ice cream, SoundCloud.
Dislikes: Mayonaise, school, country, Hayko, hard bosses in Elden Ring, fast food, Nerf guns, drinks that are not hard liquor Jack Daniels, punks, goths, water, ham and fried chicken.