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CAFFEIN (カフェイン) is an illustrator known for creating Yowane Haku, an official VOCALOID derivative that is recognized by Crypton. Together with Yowane-P, the very "first" video of Yowane Haku became popular with over 400,000 views (a parody of Miku Miku ni Shite Ageru, horrible version).

CAFFEIN also provides illustrations to producers, mostly Haku Yowane illustrations; many of the works have achieved over 100,000 views. Examples are samfree's Megu Megu☆Fire Endless Night and Bokko boko ni Sareteru yo.

STATUS:November 2007 → Present
CAFFEIN Avatar.png
OFFICIAL:Blog: Caffein89
Gallery: Piapro Pixiv
WORKS: (Upload date)
  1. "Bokko boko ni Sare Teru yo" (Yowane Haku) (Nov.24.2007)
  2. "Yowane Haku's Despair" (Miku, Yowane Haku) (Nov.28.2007)
  3. "Voyakiloid" (Yowane Haku) (Dec.05.2007)
  4. "SUPER YOWANE MEDLEY" (Yowane Haku) (Feb.23.2008)
  5. "Yowane Haku Arrange Song" (Yowane Haku) (Feb.23.2008)
  6. "Tsumanne" (Yowane Haku) (Aug.09.2008)
  7. "Yowane Haku's Season" (Yowane Haku) (Nov.21.2008)
  8. "Kane" (Rin) (Jan.14.2009)
  9. "Snow Flower" (Luka) (Feb.11.2009)
  10. "World is Mine" (Yowane Haku) (Apr.08.2009)
  11. "Megu Megu Endless Fire Night" (Gumi) (Jun.26.2009)
  12. "Kind Regards" (Gumi) (Jul.09.2009)
  13. "Dear" (Miku) (Jan.29.2009)
  14. "PM's Link" (Namine Ritsu) (Apr.08.2009)
  15. "God knows..." (Yowane Haku) (May.02.2010)
  16. "Sea of Miracles" (Iroha) (Oct.01.2010)
  17. "Kind Regards" (Gumi) (Jul.09.2010)
  18. "Snow-White Medium" (Miku) (Oct.05.2010)
  19. "cyber driver" (Yowane Haku) (Oct.16.2010)
  20. "I Made A Horrible Voice" (Yowane Haku) (Nov.21.2010)
  21. "My Best Friend" (Miku, Iroha) (Apr.22.2011)
  22. "Shotgun Lovers" (Kasane Teto) (Jul.13.2011)
  23. "Holy in the Darkness" (Yowane Haku) (Nov.21.2011)
  24. "Insania Argenti" (IA) (Jan.27.2012)
  25. "shiny☆wing" (Miku, Rin, Luka) (May.06.2013)

Songs / Notable Works[]

メグメグ☆ファイアーエンドレスナイト (Megu Megu☆Fire Endless Night)

Uploaded 2009.06.26 Featuring GUMI
Music samfree Main article メグメグ☆ファイアーエンドレスナイト (Megu Megu☆Fire Endless Night)
Lyrics samfree
This song has reached over 1,200,000 views and is featured in the game Megpoid the Music♯.

Mor iya sie

Uploaded 2011.07.28 Featuring Nekomura Iroha
Music Yowane-P Main article Mor iya sie
Lyrics Yowane-P
Video Mikuriya Wata, CAFFEIN (illust)


Haku concept art
Dell Honne Concept art.jpg
Dell Honne's concept art

CAFFEIN loading screen.jpg
CAFFEIN's loading screen art for the game Project Diva Extend
Gothic Module Yowane Haku.png
CAFFEIN's Gothic Module for the game Project Diva Extend
Cyber Drive Yowane Haku.jpg
CAFFEIN's Cyber Drive Module for the game Project Diva Arcade

Haku Nendoroid figure

Haku Yowane TinierMe.jpg
Haku Persona Gacha TinierMe