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Born (1991-10-18) 18 October 1991 (age 32)
Tokyo, Japan
  • Singer
  • songwriter
  • composer
Years active2010–present
Member ofAfter the Rain

Mafumafu (Japanese: まふまふ, Hepburn: Mafumafu, born October 18, 1991) is a Japanese singer. In addition to his solo work, he is a vocalist, lyricist and composer in the music duo After the Rain formed with fellow utaite singer Soraru. Mafumafu is also popularly known as Nandemoya (Japanese: 何でも屋, lit. Jack of all trades).[1] His broad vocal range, spanning well over five octaves, allows him to sing in a high register comparable to some Vocaloid songs;[2][failed verification] with some covers, he has also adopted the name Manunchan (まぬんちゃん) for his "female persona", who has an even higher voice.[3][4] His image color is white. His 2D image has a signature appearance of white hair and a barcode on his left cheek. His YouTube channel has over 3 million subscribers.[5] His videos have over 2.0 billion combined views.[6]

Mafumafu plays guitar and piano.[7] He covers Vocaloid songs from other creators as well as performing his own original songs. He also produces music for games, anime, and other artists.[8][9][10]

On June 5 2022, Mafumafu announced on Twitter that after his concerts on June 12 at Tokyo Dome, he would go on an indefinite hiatus from all personal music activities as Mafumafu for the first time in 11 years, citing his medical condition. [11]

On Jan 8 2023, Mafumafu announced that he would slowly resume activities. [12]

Early life[edit]

Mafumafu had piano lessons when he was younger. When he was in elementary school, he tried to make ring tones with an app on a mobile phone his father gave him. He later decided that music was his vocation when he was in high school. In university, he formed a rock band with his friends, the guitarist in the band introduced him to the culture of vocaloid songs and Utaites on the internet.[13] This inspired him to upload his songs on the internet.

Music career[edit]

He began publishing song cover videos on Niconico in late 2010. In interviews, he has said that he enjoys listening to a variety of music including electronic,[14] and that he was drawn to music because his childhood was painful and he felt he could convey in music the emotions he had difficulty expressing otherwise.[15][16] He also believes he grows when he is able to overcome the things he did not know or was unable to do before.[17] Since his life in the music industry began, he has stored vocabulary and experiences within himself, which he pulls on when composing and writing lyrics.[18]

While Mafumafu primarily works on his solo dōjin albums, he has done two albums with utaite singer Soraru.[19] On 13 April 2016, they released Crocrest Story under the name After the Rain under the Universal Entertainment Japan label. Mafumafu handled most of the composition and arrangement for the album.[16] He said that he tried to create songs that matched both of their musical ranges, was fun for them, and that drew out both of their strengths.[16] The album reached second place on Oricon's weekly charts.[20]

His first solo tour ran from 15 January to 5 February 2017.[21][22] On 7 May, Mafumafu hosted Hikikomori-tachi demo Fest ga shitai! (ひきこもりたちでもフェスがしたい!) and performed alongside Soraru, Amatsuki, Urashimasakatasen, luz, un:c, Araki, nqrse, and kradness.[23] On 18 October 2017, he released the album titled Ashita-iro World end (明日色ワールドエンド), an album which looks at the end of the world.[24]

Connected to Disney, an official Disney cover album, was released on 13 March 2019. Mafumafu helped produce the album, as well as performed alongside six other singers.[25] On 22 June 2019, he held a solo live performance at the MetLife Dome with an audience of 35,000 people.[26][27] On the next day, 23 March, Mafumafu hosted the annual Hikikomori-tachi demo Fest ga shitai! (ひきこもりたちでもフェスがしたい!).[28] In July, Mafumafu released the single Sacrifice (サクリファイス). This was his first time creating music for an anime, this time for the anime To the Abandoned Sacred Beasts.[29] His album titled Kagura-iro Artifact (神楽色アーティファクト) was released through A-Sketch Inc. on 16 October. There were 20 songs in the album, more than any other album Mafumafu had previously released.[30] He attempted to select the best 20 songs he was capable of creating[31] and included songs with a variety of musical styles, which was a different trend from previous albums.[32][33] Mafumafu also wrote the lyrics, composed, and arranged the music for the opening theme of Pokémon Journeys, scheduled to first air on 17 November 2019, on TV Tokyo. The opening theme "One, Two, Three" is sung by After the Rain, Mafumafu and Soraru's music duo, for the first 31 episodes.[34]

On 16 February 2020, Mafumafu was found unconscious in his living room by staff visiting his home. He was transported to a medical institution, where he was diagnosed with cardiogenic syncope.[35]

Mafumafu was scheduled to hold a solo show at the Tokyo Dome on 25 March 2020[36] as well as his Hikikomori-tachi demo Fest ga shitai! (ひきこもりたちでもフェスがしたい!) in the Tokyo Dome on 26 March. However, he announced on 12 March that he would hold off on the performances due to the impacts of COVID-19. While he did consider postponing the events to a later date, it was officially announced on 31 March that they were canceled.

Sales of Mafumafu's first video release is scheduled to go on sale 14 October 2020, consisting of video shot during his 2019 performance at the MetLife Dome.

Mafumafu continues to be active on both YouTube and Niconico. He has participated in live shows and summer comic market events. He is currently posting videos with fellow utaite singers and friends Soraru, Amatsuki, Uratanuki, Ahono sakata, luz, as well as game commentator Kiyo.[37]

Mafumafu has a Teru teru bōzu character called Mafuteru (まふてる) which acts as his guardian. Mafuteru is sometimes said to help Mafumafu with the illustrations and editing for his music videos.[38]

The internet series Hikikomori demo maru maru ga shitai! (ひきこもりでも○○がしたい!), also known as Hikimaru (ひきまる), started on 19 December 2018, with appearances by Mafumafu. The second season, Hikimaru 2nd, started on 26 September 2019, with a line up of eight people consisting of Mafumafu, Soraru, Amatsuki, luz, Uratanuki, Shima, Tonari no sakata, and Senra.[39]

On 23 October 2021, On the YouTube channel of Haru Shibuya (渋谷ハル), a virtual YouTuber. Soraru, Haru Shibuya announces the establishment of a virtual YouTuber office with the professional gaming team "Crazy Raccoon".[40] It was also announced that they would participate as an operation.

On 19 November 2021, Mafumafu was announced that he would participate in the 72nd NHK Kōhaku Uta Gassen on 31 December of the same year for the first time.[41]

On 5 June 2022, Mafumafu announced on Twitter that after his following live performances on 11 and 12 June, he would go on an indefinite hiatus from all personal musical activities as Mafumafu for the first time in 11 years, citing his medical condition. He still plans to be active as a songwriter for other artists, as well as continue to participate in group collaborations.



Solo albums[edit]

The highest rank is based on Oricon weekly charts.

# Released date Title Label Standard Standard product number List of recorded songs and benefits[clarification needed] Highest rank
1 11 August 2012 夢色シグナル (Yumeiro signal) Mafumafu CD 13 Songs
  1. AM 4:00
  2. 人生リセットボタン (Jinsei reset button)
  3. サクラ唄 (Sakura uta) (Album ver.)
  4. 孤独ノ隠レンボ (Kodoku no komo lembo)
  5. 千本桜 (Senbonzakura)
  6. PM 10:00
  7. イカサマライフゲイム (Ikasama life game)
  8. Caseaman (Album ver.)
  9. 完全犯罪ラブレター (Kanzen hanzai love letter)
  10. ポーカーフェイス (Poker face) feat. Suzumu
  11. カミサマネジマキ (Kamisamane jimaki)
  12. AM 5:00
2nd 31 December 2013 刹那色シンドローム (Setsuna-iro syndrome) CD 16 Song
  1. [京華創造] (Kyō hana sōzō) (Instrumental)
  2. 仇返しシンドローム (Ada-gaeshi Syndrome)
  3. 命のユースティティア (Inochi no Eustatia)
  4. 夢花火 (Yume hanabi)
  5. ハッピーチューン (Happy tune)
  6. 緑青色の憂鬱 (Ryokushōiro no yūutsu)
  7. かなしみのなみにおぼれる(Kanashimi no nami ni oboreru)
  8. [永眠童話] (Eimin dōwa) (Instrumental)
  9. ラストエフェクト(Last effect)
  10. ギガンティックO.T.N (Gigantic O.T.N)
  11. 延命治療 (Enmei chiryō) – Arranged version
  12. 後書きの始まり、虚無の目次 (Atogaki no hajimari, kyomu no mokuji)
  13. ラストリーフ (Last leaf)
  14. [睡杯] (Nemu-hai) (Instrumental)
--Bonus Track--
15. 仇返しシンドローム (Ada-gaeshi Syndrome) (Instrumental setsunairo +3 ver.)
16. 緑青色の憂鬱 (Setsuna-iro syndrome) (Instrumental setsunairo ver.)
3rd 25 April 2015 闇色ナイトパレード (Yami-iro Night parade) CD 15 Song
  1. [Trance] (Inst)
  2. キューソネコカミのすゝめ (Kyūsonekokami no Susu me)
  3. 忘却のクオーレ (Bōkyaku no Quare)
  4. 林檎花火とソーダの海 (Ringo hanabi to soda no umi)
  5. プラスティック (Plastic)
  6. ハーテッド・ドール (Hearted Doll)
  7. ショパンと氷の白鍵 (Shopan to Kōri no hakken)
  8. [Vulgar entertainment] (Inst)
  9. 戯曲とデフォルメ都市 (Gikyoku to Deforma toshi)
  10. 落書きの隠しかた (Rakugaki no kakushi kata)
  11. 空を駆け下りて (Sora o kake orite)
  12. クリスナイトパレード (Chris night parade)
  13. Septet Minus a fear
  14. [Before goodbye] (Inst)
  15. 夢と泡沫 (Yume to utakata)
4th 18 October 2017 明日色ワールドエンド(Ashita-iro World end) NBCUniversal First Press Limited Edition A (with benefits) GNCL-1274 16 Song
  1. [Nexus]
  2. 輪廻転生 (Rin'netensei)
  3. 立ち入り禁止 (Tachiiri kinshi)
  4. 眠れる森のシンデレラ (Nemurerumori no Cinderella)
  5. 水彩銀河のクロニクル (Suisei ginga no Chronicle)
  6. 夢のまた夢 (Yume no mata yume)
  7. ふたりぼっち (Futaribocchi)
  8. [Anonymous]
  9. 罰ゲーム (Batsu Game)
  10. フューリー (Fury)
  11. 悪魔の証明 (Akuma no shōmei)
  12. 恋と微炭酸ソーダ (Koi to bitansan Soda)
  13. 常夜の国の遊び方 (Tokoyo no kuni no asobikata)
  14. すーぱーぬこになりたい (Super nuko ni naritai)
  15. [Lycoris]
  16. 終点 (Shūten)
First limited edition B (with benefits) GNCL-1275
Normal Edition GNCL-1276
5th 16 October 2019 神楽色アーティファクト (Kagura-iro Artifact) A-Sketch First limited edition A AZZS-90 20 Song
  1. 忍びのすゝめ (Shinobi no Susume)
  2. 自壊プログラム (Jikai Program)
  3. サクリファイス (Sacrifice)
  4. ジグソーパズル (Jigsaw puzzle)
  5. マルファンクション (Malfunction)
  6. 朧月 (Oborodzuki)
  7. すーぱーぬこになれんかった (Super nuko ni narenkatta)
  8. 女の子になりたい (On'nanoko ni naritai)
  9. 動かざること山の如し (Ugokazaru koto yama no gotoshi)
  10. 君のくれたアステリズム (Kimi no kureta Asterism)
  11. リライトザサーガ (Rewrite the saga)
  12. 曼珠沙華 (Manjushage)
  13. とおせんぼう(Toosenbou)
  14. 傀儡の心臓 (Kugutsu no shinzō)
  15. 廃墟の国のアリス (Haikyo no kuni no Alice)
  16. 生まれた意味などなかった。(Umareta imi nado nakatta)
  17. アートを科学する (Art wo Kagakusuru)
  18. それは恋の終わり (Sore wa koi no owari)
  19. 拝啓、桜舞い散るこの日に (Haikei, sakura maichiru kono hi ni)
  20. あさきゆめみし (Asakiyumemishi)
First limited edition B AZZS-91
Normal Edition AZCS-1082

Vocaloid original albums[edit]

# Released date Title Label List of recorded song
1st 27 April 2013 明鏡止水 (Meikyō shisui) Mafumafu 10 Song
  1. ヤクビョウガミ (Yakubyougami)
  2. グッドスリープコンソール (Good sleep console)
  3. 仇返しシンドローム (Kyū-gaeshi syndrome)
  4. 後書きの始まり、虚無の目次 (Atogaki no hajimari, kyomu no mokuji)
  5. 緑青色の憂鬱 (Ryokushōiro no yūutsu)
  6. かくしごと (Kakushi goto)
  7. カラクリ遺伝子脳 (Karakuri Idenshi nō)
  8. 夕暮れ蝉日記 (Yūgure semi nikki)
  9. 明鏡止水 (Meikyō shisui)
  10. 透明パレット (Tōmei palette)


Released date Title Formats Album Billboard Japan

Download songs

From Music label A-Sketch
1 1 July 2019 サクリファイス (Sacrifice) Digital download Kagura-iro Artifact 41
2 21 February 2020 それを愛と呼ぶだけ (Sore o ai to yobu dake) N/A 36
3 1 April 2020 最終宣告 (Saishū senkoku) 82
4 10 January 2021 ナイティナイト (Nighty night) N/A
5 デジャヴ (Deja vu)
6 ノンタイトル (Non-title)
7 リア充になりたい (Rear jū ni naritai)
8 悔やむと書いてミライ (Kuyamu to kaite mirai)
9 携帯恋話 (Keitai renwa)
10 アルターエゴ (Alter ego)
11 夜空のクレヨン (Yozora no Crayon)
12 赤い風船 (Akaifusen)
13 百鬼夜行 (Hyakkiyakō)
14 ひともどき (Hitomodoki)
15 イカサマダンス (Ikasama Dance)
16 ユウレイ (Yūrei) 92
17 夜想と白昼夢 (Yoru sō to hakuchūmu) (Shorts ver.) N/A
18 12 March 2021 片恋 (Katakoi)
19 3 December 2021 ブレス (Breath)
20 4 February 2022 二千五百万分の一 (Nisengo Hyaku man-bu No ichi)
21 18 February 2022 栞 (Shiori)

Other charted songs[edit]

Year Title Japan Hot 100 Peak position Album
2019 女の子になりたい (Onnanoko ni naritai) 85[42] Kagura-iro Artifact
2021 タクト (Takt) by ryo(supercell) feat. mafumafu, gaku


Voice actor[edit]

  • 2016 – Theater anime Sukininaru sono shunkan wo.~ Kokuhaku jikkō iinkai ~ (The moment love it Confession Executive Committee) role as School boy A
  • 2017 – TV Anime – Atom: The Beginning Role as Student 2 (EP.4)

TV program[edit]

  • 19 October 2019 – Hikikomori kara dōmu e netto jidai no senku-sha ma fuma fu on NHK

Internet TV[edit]

  • 27 January 2018 – Wakeari veggie on AbemaTV Ultra games [Note 1]
  • 19 December 2018 – Hikikomori demo maru maru ga shitai! (also known as Hikimaru) on Yahoo! JAPAN[43]


  1. ^ The cast changes with each broadcast, but it is credited as one of the main casts for each broadcast.


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