sasakure.UK is a Japanese songwriter famous for being the Vocaloid producer behind "*Hello, Planet." He is also the producer of the band UKRampage.
Hitoma Iruma adapted "The (Week)end is Coming!" and "Our 16bit Wars", the first two songs of the Doomsday series, into novels in 2015 and 2016.
- Wondering Visitor (December 31, 2006)
- Kaleido*MIXture (August 14, 2008)
- Mistletoe -Viscumalbum- (December 30, 2008)
- La La La Doomsday. (August 15, 2009)
- Do Vocaloids Dream of Doomsday Bird? (March 3, 2010)
- Prototype Nana Kujaku (August 15, 2010)
- The Trash-Heap Princess and Apostrophe (June 12, 2011)
- The Fantastic Reality of Aesop (April 11, 2012)
- MetroJackz (August 11, 2012)
- The Fantastic Diagram of Futuristic Playdreams (May 29, 2013)
- [i:d] (August 12, 2013)
- Makamaka Monomonosy (December 17, 2014)
- LostPirika (August 16, 2015)
- Fukashigi Monoyukasy (December 2, 2015)
- Zetsumetsu-Commonsense (August 14, 2016)
- CLOCKWORK ALPHA (August 14, 2016)
- GÜM (December 29, 2017)
- UNIQTRAP (December 29, 2017)
- Ergosum (December 13, 2019)
- *Hello, World's End Cine Camera. (May 5, 2010)
sasakure.UK provides examples of:
- Half-Human Hybrid: "Myriad of Ages Lullaby" and "A Millennium and the Spiral, For Things that Fall" feature the child of a human mother and an ayakashi father.
- Human Mom Non Human Dad: The illustrations for "Myriad of Ages Lullaby" and "A Millennium and the Spiral, For Things that Fall" feature the child of a human mother and an ayakashi father.
- "Tiger Rampage" is based on The Moon Over the Mountain by Atsushi Nakajima.
- "Crybaby Pippo" quotes "Be not defeated by the rain, Nor let the wind prove your better", the famous line from Be not Defeated by the Rain by Kenji Miyazawa.
- "A Soliloquy of The Boy who Cried Wolf" references The Boy Who Cried Wolf, one of Aesop's Fables.
- "Little Cry of The Abyss" is based on The Little Mermaid. The music video even features the Danish text of the book.
- Soulful Plant Story: "*Hello, Planet." follows Miku's journey through a post-apocalyptic world as she keeps a flower pot, the only keepsake she has of a lost companion, safe. The music video ends with Miku dying after her arduous journey, but the plant successfully sprouts.
- Stepford Smiler: "Little Cry of The Abyss" is based on The Little Mermaid, a Fairy Tale about a mermaid in love with a human prince even though it's doomed. The second chorus has the line "Even though I knew it's all in vain / I forced myself to smile / Even though I'm already hurt / Within the transmitted reality / contains happiness but also strength".
- Yōkai: Makamaka Monomonosy and Fukashigi Monoyukasy feature different kinds of yokai, known here as "ayakashi". The narrator of "A(ma)YAKASHI Diary" has been writing a diary where he blames imaginary ayakashis for everything bad that happens to him.