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Yoasobi (stylized as YOASOBI) is a Japanese music duo under Sony Music Entertainment Japan, consisting of composer Ayase and vocalist Ikura. Ayase was a Vocaloid music producer who debuted in 2018 when he released the song "Sentensei Assault Girl" on Nico Nico Douga and YouTube, while Ikura, real name Rira Ikuta (Japanese: 幾田りら) was a singer-songwriter who released two mini-albums in 2018 and 2019.

YOASOBI was formed in 2019, and produces songs with lyrics based on web novels released on, a website operated by Sony Music Japan. Their first song was "Yoru ni Kakeru" (lit. Racing into the Night), released on YouTube in 2019, based on the web novel "An Invitation From Thanatos" by Mayo Hoshino. "Yoru ni Kakeru" became a massive hit in Japan and quickly propelled YOAOSOBI into stardom.

Ayase and YOASOBI's official YouTube channel can be found here. YOASOBI's official website can be found here.

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  • Ghost City Tokyo (2019)

Music Videos

Note: Names in Italics are transliterations of the original video's Japanese title, and are unofficial names.

  • 先天性アサルトガール (Sentensei Assault Girl, 2018)
  • 泣いてない (Naitenai, 2019)
  • ハッピーエンダー ("Happy Ender", 2019)
  • 夜撫でるメノウ (Yoru Naderu Menou, 2019)
  • ラストリゾート ("Last Resort", 2019)
  • 人間モドキ (Ningen Modoki, 2019)
  • キラークイーン ("Killer Queen", 2019)
  • フィクションブルー ("Fiction Blue", 2019)
  • ヴァイオレッタ ("Violeta", 2019)
  • 幽霊東京 ("Ghost City Tokyo", 2019)
  • シニカルナイトプラン (Cynical Night Plan, 2020)
  • よくばり (Yokubari, 2020)

Other Works

  • Composer of "Evergreen" (Japanese: エヴァーグリーン), original song for Nijisanji Virtual YouTuber Ryushen.
  • Composer of "Wanderer" (Japanese: ワンダラー) with Strawberry Prince member Satomi. Ayase also released a Miku vocal version on his own channel.
  • Composer of 開幕ゼノパレード for VALIS
  • Composer of Alter Garden for [1]


Mini Albums

  • Rerise (2018)
  • Jukebox (2019)



  • The Book (2021)


  • "Yoru ni Kakeru" (Japanese: 夜に駆ける, 2019)
  • "Ano Yume o Nazotte" (Japanese: あの夢をなぞって, 2020)
  • "Halzion" (Japanese: ハルジオン, 2020)
  • "Tabun" (Japanese: たぶん, 2020)
  • "Gunjou" (Japanese: 群青, 2020)
  • "Haruka" (Japanese: ハルカ, 2020)


Tropes about Ayase, Ikura and YOASOBI

  • Never Say "Die": The original novel "Yoru ni Kakeru" is based on is very explicit that the main character(s) committed suicide at the end of the story. "Yoru ni Kakeru" is much more covert about it, and the lyrics made no use of "die".

Alternative Title(s): Ayase


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