This name is officially written using the Japanese name format, the family name is Mori.

Associated pages

Mori Calliope is an English Virtual YouTuber associated with hololive, as part of its English (EN) branch first generation of VTubers alongside Ninomae Ina'nis, Takanashi Kiara, Watson Amelia, and Gawr Gura.

Introduction Video


【DEBUT STREAM】Memento Mori! What is Up, Humans?! hololiveEnglish holoMyth

Calliope's introduction.


Calliope is equally excited by both rapping and "reaping". Her favorite weapons include her scythe (nicknamed "Ricky") and the flail, a medieval weapon made from a spiked metal ball on a chain.

Although fluent in English, Calliope often fails to understand current modes of speech, such as the use of contractions or modern slang. She is easily flustered by romance, leading some to call her the "tsundereaper".

When not on camera, however, she is described as air-headed and hopelessly forgetful as Kiara has mentioned that she typically misplaces her things over and over, despite leaving them in very obvious places like a cellphone in her jacket


The Grim Reaper's first apprentice. Because the world's medical system advanced so dramatically, Calliope became a VTuber to collect souls. It seems that the lost souls vaporized by the wholesome relationships of VTubers flow through her as well. In the end, she's a gentle-hearted girl whose sweet voice contradicts the morbid things she tends to say, as well as her hardcore vocals.[4]



She was introduced simultaneously on both hololive's and hololive's English Twitter accounts and on hololive English's YouTube channel in a small video with the rest of the first generation on 8 September 2020.[5][6][7] Her Twitter account was created on July, but only made her first tweet on her official introduction on 8 September.[8] Her YouTube channel was created on 16 July but she debuted on 12 September also releasing her first original song: "失礼しますが、RIP♡" or known in English as "Excuse My Rudeness, But Could You Please RIP?" a rap song written by herself.[9][10]


On 22 October, Calli reached 500,000 YouTube subscribers.

On 1 November, she released a new original song "Cursed Night"[11]

On 14 December, she reached 800,000 subscribers on her YouTube channel, Calli celebrated with an unarchived karaoke stream.[12]

On 29 December, she sang in Tsunomaki Watame's second original song "Douten Hitsuji" for her rap parts.[13][14]


On 7 January, she reached 900,000 YouTube subscribers.

On 25 January, Calli reached 1,000,000 YouTube subscribers during a subscriber endurance stream, making her the 7th hololive member to reach that milestone and the 2nd to do so on the English branch after Gawr Gura.[15]

On 31 January, Calli debuted her eighth original song "Off With Their Heads"[16]

On 15 February, she announced during a stream that as part of her birthday celebration she would release a second EP containing 5 songs, 4 of them original. Calli also announced that this EP would be released including physical copies.[17]

On 4 March, Calli debuted her ninth original song "Ibasho" (Where I Belong) as part of a collaboration with the game Princess Connect! Re:Dive, during a stream on her YouTube channel.[18]

On 25 March, she announced that she collaborated with Rikka from Holostars for an original song called "Spiral Tones", later in the fifteenth edition of RiTunes Labo featuring Calli, they announced that an MV is in the making.[19]

On 1 April, all holoMyth members revealed new chibi models based on popular fan designs by Walfie.[20]

On 4 April, she released the music video for her tenth original song, "Red", along with releasing her second EP "Your Mori."[21]

On 30 April, hololive's Twitter account announced that every member of holoMyth would get their second 2D costumes.[22]

On 3 May, Calli debuted her second 2D costume during a stream, an outfit inspired by hip hop culture. Unlike her main outfit, her hair is styled with a ponytail, she wears a white strapless blouse with a pink skull, with a black tank top underneath, black pants with two red stripes and glitter gray around her waist. On top of these, Calli can also use a matching jacket with the design of her scythe and a black cap with golden decorations. She can wear shades and move her hand up to hold a microphone and, unlike her standard appearance, Calli's nails are painted red instead of black.[23] At the peak of the reveal, she reached an audience of 135,000 people.


Main page: Mori Calliope/Discography


Release Date 20 October 2020
Mori Calliope Death Bits Debut EP Cover by Ninomae Ina'nis.jpg
Track List
  1. "Reaper or Rapper? Self introduction rap" (ReaperかRapper? 自己紹介ラップ, Reaper ka Rapper? Jikoshoukai Rap)
  2. "Excuse My Rudeness, But Could You Please RIP?" (失礼しますが、RIP♡, Shitsureishimasu ga, RIP♡)
  4. "Live Again"
  5. "Excuse My Rudeness, But Could You Please RIP?" (instrumental)
  6. "Excuse My Rudeness, But Could You Please RIP?" (acapella)
External links
Digital Release • YouTube
Your Mori.    
Release Date 4 April 2021
Mori Calliope Your Mori Cover.png
Track List
  1. "The Grim Reaper is a Live-Streamer"
  2. "Red"
  3. "guh"
  4. "IJIMEKKO Bully" (いじめっ子Bully)
  5. "Empress (Calliope ver.)" (CD exclusive)
External links
Digital Release • YouTube


  • On 18 February 2021, Princess Connect! Re:Dive's English Twitter acccount published a teaser of a new song inspired in the game interpreted by Calli, later the same day on her Twitter account Calli also confirmed to be the writter of the lyrics of this song named: Ibasho (Where I Belong), as part of a collaboration between the game and hololive English.[24][25]
  • On 12 March 2021, as part of their six months celebration the holoMyth members announced that they would get an official BGM image soundtrack featuring Camellia, with a release date of 14 March. The song inspired by Calli is titled "Lively Bopping to Death's Knocking."[26]


  • Her fanbase is officially called "Dead Beats" 「デットビーツ」.[27]


  • "If you quit when you suck, you'll suck forever."[28]
  • "You can be cute and strong at the same time."
  • "We never forget the fallen, but we move on."[29]


  • In Japanese, her name is officially written 「森美声」.[30] She also writes it with her given name in katakana,「森 カリオペ」, as on her Twitter and SoundCloud.
    • "Mori" is a Japanese surname, written with the kanji 森, meaning "forest".
    • Mori is also Latin for the verb "to die", as in such phrases as "memento mori" ("remember death"). This is referenced in her sign-off phrase: "I'm your Mori, and I hope you'll remember me." English words such as "mortal" are thought to derive from the same root.
    • The kanji used to write "Calliope" is 美声, normally read "bisei", meaning "beautiful voice". This is a calque of her Greek namesake, Καλλιόπη, which also means "beautiful voice" in ancient Greek.
    • In Greek mythology, Calliope is one of the Muses, a goddess who presides over epic poetry. It is normally pronounced "ka-LYE-o-pee" in English, which is how Calli pronounces her name. As such, Calliope's name is likely a nod to her singing voice as well as her passion for rap music, as poetry is the foundation of the genre.
    • When speaking in English, Calli usually gives her name in the English order, as does Amelia Watson. The other three holomyth members (Gawr Gura, Ninomae Ina'nis, and Takanashi Kiara) put the surname first, Japanese style, even when speaking English.
  • Calli's birthday on 4 April (4/4) coincidences with the fact that in Japanese the number 4「四」 is a homonym with the word for death,「死」.
  • While many Japanese hololive members have a special pronoun for themselves (for example, Minato Aqua says "atishi", Nakiri Ayame says "yo", and Sakura Miko refers to herself in the third person), Calli is the only holoEN member who does something close to the English equivalent, sometimes referring to herself as "your boy".
  • She likes slaying people, dark spaces, flowers, beanies, stuffed dolls, sweets, the color red,[31] mafia movies, rap (especially Japanese rap; she claims that she met the genre in the Underworld because it was dead), red wine, and “Death Sensei” (the Grim Reaper) as she is a reaper in training.
    • Because of her passion for rap, Calliope released an original song on her debut stream. She also announced that she would release her first EP for free to thank the support received, including four songs, an instrumental and an acapella version, some of them written by herself.[32]
  • She dislikes crowds, coffee, hospitals and cantaloupe.
  • Her favorite animes include Puella Magi Madoka Magica, Made in Abyss and Dr. Stone.
  • Her favorite games include games from FromSoftware, Ghost of Tsushima, Castlevania: Symphony of the Night, weird RPG maker games, and platformers (preferring side-scrollers).
  • Because of her air headed nature, she has a bad habit of not knowing how to keep her mouth shut when she needs to, thus causing misunderstandings. For example:
    • She said she liked short guys because she wanted to make short people feel included as well as people with beards. This lead to her audience to think she has a fetish for short people and beards which she tried backpedaling on.
    • When asked about her cup size, she tried finding ways to avoid saying before using Shirogane Noel's "Knight Cup" idea for reference, not realising it to be an innuendo on K-cup bras. This has lead to her saying she is "Grim Reaper" Cup, which immediately backfired on her as everyone started to assume she's a D-cup, G-cup or even as extreme as an R-cup.
  • Her goals and dreams include becoming a great track maker and mixer, collaborating with other VTubers and people, supporting her fellow first gen members, becoming an expert in Japanese, writing and performing an anime or video game opening song, and writing a full album.
  • Calliope was the first member of hololive English to debut.
  • In addition to English, she can speak Japanese, although she is still learning and actively taking classes.
  • She claims that the Underworld mimics the aesthetic of the current era, so it looks mostly like a modern city.[33]
  • Her debut stream experienced some lag. She claimed it was because of the bad internet connection in the Underworld.
  • She is the first hololive EN member and seventh hololive member overall to join official hololive Subreddit as a moderator.
  • She has a habit of randomly making comical gasping noises that sound like "guh", usually after taking a drink.
  • During her second live stream, Kiara revealed her crush on Calliope, much to Calliope's annoyance. This has to do with the fact that Kiara is immortal, so no matter how many times Calliope would kill her, she'd always revive. This has resulted in a long-standing running gag between the two, which eventually became the ship "TakaMori".
  • Her EP "Dead Beats" became the number one album worldwide on iTunes on 22 October 2020.[34] This gave a lot of media attention to VTubers during a few days.
  • According to herself, before she became a Virtual Youtuber in the Human world, Calli worked two jobs, one of them a summer job at a restaurant chain as a waitress, in order to save up enough funds to take her dream trip to "Overworldian" Japan, and despite making quite a few mistakes during the Job, and being abused by more than one couple that entered, she stuck through it as long as she needed to. However, as soon as she was done saving up, and she had enough to buy the cheapest plane ticket she could find, Calli quit her Summer job and went on the trip she had been saving so long for.[35]
  • Calliope made a guest appearance on the 23rd podcast video of Trash Taste, a podcast channel that consists of three Anitubers (Gigguk, CDawgVA, and The Anime Man). Among other things, she revealed that she is a big fan of MoistCr1TiKaL (penguinz0 on YouTube) and has expressed her desire to collab with him. She has also considered working with The Anime Man on rap.[28]
  • Calliope's tweet about the Just Chatting stream after the new model announcement accidentally leaked the look of the new model due to it being scheduled before the actual reveal, which prompted an amusing remark from Watson Amelia.[36]
  • In announcing that she would run a World of Darkness RPG for hololive English, Calli noted that it had been several millennia since she had last run a tabletop RPG. This suggests both that Calli has a much better memory of the distant past than Kiara, and that the hobby of roleplaying games is several thousand years older than previously understood.
  • On 3 May 2021, the hashtag #CalliDrip became trending on Twitter worldwide when she debuted her second 2D costume.[37]

External Links


Twitter hashtags

Further readings

Hololive Logo.png
Solo Debutants
(hololive 0th Gen)
Tokino Sora (🐻) A-chan and Ankimo · 
Roboco (🤖) · 
Sakura Miko (🌸) · 
Hoshimachi Suisei (☄️) · 
AZKi (⚒️) · 
First Generation
Yozora Mel (🌟) · 
Aki Rosenthal (🍎) · 
Natsuiro Matsuri (🏮) · 
Shirakami Fubuki (🌽) · 
Akai Haato (❣️) · 
Second Generation
Minato Aqua (⚓️) · 
Murasaki Shion (🌙) · 
Nakiri Ayame (👿) · 
Yuzuki Choco (🍫💋) · 
Oozora Subaru (🚑) · 
hololive GAMERS
Shirakami Fubuki (🌽) · 
Ookami Mio (🌲) · 
Nekomata Okayu (🍙) · 
Inugami Korone (🥐) · 
Third Generation
(hololive Fantasy)
Usada Pekora (👯) · 
Uruha Rushia (🦋) · 
Shiranui Flare (🔥) · 
Shirogane Noel (⚔️) · 
Houshou Marine (🏴‍☠️) · 
Fourth Generation
Tsunomaki Watame (🐏) · 
Tokoyami Towa (👾) · 
Kiryu Coco (🐉) · 
Amane Kanata (💫) · 
Himemori Luna (🍬) · 
Fifth Generation
Yukihana Lamy (☃️) · 
Momosuzu Nene (🥟) · 
Shishiro Botan (♌) · 
Omaru Polka (🎪) · 
AZKi (⚒️) · 
Hitomi Chris (🌰) · 
Mano Aloe (👅) · 
hololive Indonesia
First Generation
Airani Iofifteen (🎨) · 
Moona Hoshinova (🔮) · 
Ayunda Risu (🐿️) · 
Second Generation
Kureiji Ollie (🧟‍♀️) · 
Anya Melfissa (🍂) · 
Pavolia Reine (🦚) · 
hololive English
First Generation
Ninomae Ina'nis (🐙) · 
Takanashi Kiara (🐔) · 
Watson Amelia (🔎) · 
Mori Calliope (💀) · 
Gawr Gura (🔱) · 
hololive China (Dissolved Branch)
First Generation
Yogiri (🍼🎸) · 
Civia (🌙🦄) · 
Spade Echo (🍑) · 
Everyone retired
Second Generation
Rosalyn (📖) · 
Doris (🐟) · 
Artia (❄️) · 
Everyone retired
Holostars Logo.png
First Generation
Hanasaki Miyabi (🌺) · 
Kanade Izuru (🎸) · 
Arurandeisu (🍕) · 
Rikka (⚙️) · 
Second Generation
(Sun Tempo)
Astel Leda (🎭) · 
Kishido Temma (🦔💨) · 
Yukoku Roberu (🍷) · 
Third Generation
Kageyama Shien (🟣) · 
Aragami Oga (🐃) · 
Yakushiji Suzaku (💊) · 
Tsukishita Kaoru (💅) · 
Kagami Kira (💙) · 


  1. moricalliope (2020, September 9) ゆきさめママ!:} この素敵な身体、どうもありがとうございます!あたしね、本当に感謝しています!♡✿ Everyone! Here is my mama. This is my first body ever, and I love it. Thank you for making me!♪ [Tweet] Retrieved from
  2. MegaJujube (2020, September 12) ホロライブEnglish 森 カリオペ/Mori Calliope(@moricalliope)さんのLive2D riggingを担当させていただきました!Art : ゆきさめ(@ y_k_sme)ラップかっこよすぎてたまげた Congratulations on your debut!! #calliolive #hololiveEnglish [Tweet] Retrieved from
  3. Mori, C. [Mori Calliope Ch. hololive-EN] (2020, September 12) 【DEBUT STREAM】Memento Mori! What is Up, Humans?! #hololiveEnglish #holoMyth [Video File] Retrieved from
  4. [Profile on] Retrieved from
  5. hololivetv (2020, September 8) 【🎉🎉 速報 🎉🎉】/#ホロライブ から英語圏グループ「ホロライブEN」のデビューが決定‼✨ \ 🔽詳細はこちら🔽 #hololiveEnglish #ホロライブプロダクション [Tweet] Retrieved from
  6. hololive_En (2020, September 8) [🎉Major Announcement🎉] Check out the full video here: The time is close. #holoMyth #hololiveEnglish [Tweet] Retrieved from
  7. [hololive English] (2020, September 8) Hololive English -Myth- Debut PV : Time is Close #holomyth [Video File] Retrieved from
  8. moricalliope (2020, September 8) doko the hell am i [Tweet] Retrieved from
  9. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2020, September 12) 【DEBUT STREAM】Memento Mori! What is Up, Humans?! #hololiveEnglish #holoMyth [Video File] Retrieved from
  10. moricalliope (2020, September 12) “I’m not asking much...”✿ It’s my brand new song from my debut EP “DEAD BEATS”! rap&mv: me, Calliope Mori! track&mix: @kokorobeats [ORIGINAL SONG] 失礼しますが、RIP♡ || “Excuse My Rudeness, But Could You Please RIP? #HoloMyth #hololiveEnglish [Tweet] Retrieved from
  11. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2020, November 1) [ORIGINAL SONG] Cursed Night - Calliope Mori [Video File] Retrieved from
  12. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2020, December 14) 【UNARCHIVED KARAOKE】THANK YOU FOR 800k?! BIG UPS, AS ALWAYS! :} [Video File] Retrieved from
  13. Tsunomaki, W. [Watame Ch. 角巻わため] (2020, December 29) 【 #角巻わため1周年 】角巻わため 1st Anniversary Live Fever!!🌟【ホロライブ4期生】[Video File] Retrieved from
  14. Tsunomaki, W. [Watame Ch. 角巻わため] (2020, December 29) 曇天羊/角巻わため feat.Calliope Mori【オリジナル曲】[Video File] Retrieved from
  15. Mori, C.[Mori Calliope Ch. hololive-EN] (2021, January 25) [1 MILLION SUBS ENDURANCE STREAM] Until the End!!! 8} [Video File] Retrieved from
  16. Mori, C. [Mori Calliope Ch. hololive-EN] (2021, January 31) [ORIGINAL SONG] Off With Their Heads - Calliope Mori [Video File] Retrieved from
  17. Mori, C. [Mori Calliope Ch. hololive-EN] (2021, February 15) 【VALENTINE'S PARTY】Eating Left Over Chocolate, No, I Am Not an Addict. :}#Holomyth​ #HololiveEnglish [Video File] Retrieved from
  18. Mori, C. [Mori Calliope Ch. hololive-EN] (2021, March 4) 【PRINCESS CONNECT】My Brand Collab New Song Release! #Holomyth​ #HololiveEnglish [Video File] Retrieved from
  19. moricalliope (2021, March 25) {{ANNOUNCEMENT - NEW SONG}} I collaborated with Rikka of Holostars on a song! We’re hoping to release it very soon, along with an MV. Additionally, I’ll be making an appearance on Rikka’s channel for a collab stream next week to celebrate! ^^ Anticipate it! (*´∇`*) よろしく! [Tweet] Retrieved from:
  20. Mori, C. [Mori Calliope Ch. hololive-EN] (2021, April 1) 【HOLOEN COLLAB】Not a Joke! Serious Outfit Reveal on April the 1st #yurumyth​ #hololiveEnglish [Video File] Retrieved from
  21. Mori, C. [Mori Calliope Ch. hololive-EN] (2021, April 4) [MV] Red - Calliope Mori #HololiveEnglish​ #HoloMyth [Video File] Retrieved from
  22. hololive_En (2021, April 30) [🎉News🎉] #hololiveEN new outfits will be revealed from Monday, May 3 on each of the members' YouTube channels🥳🙌 🔽Press Release (EN)🔽… 🔽Press Release (JP)🔽… #yurumyth #ホロライブ #hololiveEN #ホロライブEnglish [Tweet] Retrieved from
  23. Mori, C. [Mori Calliope Ch. hololive-EN] (2021, May 3) 【NEW OUTFIT REVEAL!】Grim Reaper's Brand New Style! 新衣装お披露目会!! #HololiveEnglish​ #CalliDrip [Video File] Retrieved from
  24. priconne_en (2021, February 18) Take a first look at our upcoming song with @hololive_en! Listen to a sneak peek of Ibasho (Where I Belong) by@moricalliope with album art by @rosuuri! ✨💀✨ [Tweet] Retrieved from
  25. moricalliope (2021, February 18) ★{{ NEW SONG TEASER }}★ This month’s new song release is a song for Princess Connect! Re: Dive, with lyrics written and sung by me! And, I reached out to one of my favorite composers @Leigendar to collaborate with me on the project! Anticipate it~! (^◇^)★彡 [Tweet] Retrieved from
  26. Takanashi, K. [Takanashi Kiara Ch. hololive-EN] (2021, March 12) 【HoloMyth】Half Year Anniversary with the girls...AND ANNOUNCEMENTS 【Don't Starve Together】[Video File] Retrieved from
  27. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2020, September 12) 【DEBUT STREAM】Memento Mori! What is Up, Humans?! #hololiveEnglish #holoMyth [Video File] Retrieved from
  28. 28.0 28.1 [Trash Taste] (2020, November 13) We Met a REAL Virtual YouTuber (ft. Mori Calliope) | Trash Taste #23 [Video File] Retrieved from
  29. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2020, December 29) 【MINECRAFT】Casual Exploring and Chilling! Literally. #hololiveEnglish #holoMyth [Video File] Retrieved from
  31. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2021, April 4) 【BIRTHDAY STREAM】The Grim Reaper's Birthday Bash and EP Release Party, Yo! #moribirthd4y​ #holomyth [Video File] Retrieved from
  32. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2020, September 12) 【DEBUT STREAM】Memento Mori! What is Up, Humans?! #hololiveEnglish #holoMyth [Video File] Retrieved from
  33. Mori, C. [Mori, C. [Mori Calliope Ch. hololive-EN] (2020, September 12) 【DEBUT STREAM】Memento Mori! What is Up, Humans?! #hololiveEnglish #holoMyth [Video File] Retrieved from
  34. moricalliope (2020, October 22) ... damn y’all I can’t even be gangster or funny about this like I never dreamed something like this could happen to me, so just Thank you. [Tweet] Retrieved from
  35. [Sashimi / Hololive & VTuber Clips] (2021, January 21) Calli's Job BEFORE she became a VTUBER【Mori Calliope / HololiveEN】[Video File] Retrieved from
  36. moricalliope (2021, April 1) ♡✿{{ TONIGHT'S STREAM }}✿♡ Real Serious Chatting in my Real Serious New Outfit! Just Serious Chatting! 1:00 JST // 9:00am PST [Tweet] Retrieved from
  37. moricalliope (2021, May 3) We are... Trending?! ∑(゜Д゜;)✿ The BIGGEST of "Ups" to all fans loving the new outfit and sharing that love with the world...! I am blown away. ヾ(●⌒∇⌒●)ノ #callidrip ヾ(●⌒∇⌒●)ノ [Tweet] Retrieved from
Community content is available under CC-BY-SA unless otherwise noted.