16-Year-Old Singer Yuyu to Perform OP Theme of TV Anime Mysterious Disappearances!

Music Provided by Mafumafu 2nd Single “Hazard Symbol” to Release on May 15!


Yuyu, the 16-year-old Grand Prize winner in the Next Artist category of the “InuCon!” FlyingDog Artist Discovery Audition held in 2022, is set to perform “Hazard Symbol,” the opening theme song of the TV anime Mysterious Disappearances. The anime is based on a manga by Nujima (currently serialized in Shogakukan’s Yawaraka Spirits magazine) and will premiere in Japan in April. Additionally, “Hazard Symbol” will be released on May 15 as Yuyu’s second single. The music was produced by the popular singer and Vocaloid producer Mafumafu.


Mysterious Disappearances - Key Visual


Today, a second promotional video for the anime featuring “Hazard Symbol” was released.


Mysterious Disappearances 2nd PV

This song, which marks Yuyu’s first time performing the OP theme song of a TV anime, combines the dark atmosphere and catchiness that Mafumafu is known for with Yuyu’s singing voice, making it a perfect match for the opening theme of Mysterious Disappearances.


And, starting from today, Yuyu will also be kicking off the “Yuyu 100 Video Project” on her official TikTok account. She is planning to post a variety of songs, from original compositions to covers of popular tunes, along with behind-the-scenes moments and more. The first post features “Hazard Symbol.” Be sure to check it out!

Official TikTok: https://www.tiktok.com/@yuyu_official07

Official YouTube: https://www.youtube.com/@iamyuyuitsme8



Yuyu’s comment:

Nice to meet you. I’m Yuyu, the vocalist for the opening theme song “Hazard Symbol” of Mysterious Disappearances. I feel honored to sing for this enchanting story. Ever since the teaser PV was released, I’ve been filled with excitement and can’t stop grinning.


I believe that we’ve created a suitably divine song for Mysterious Disappearances, so please look forward to it.


Sumireko-san…/// Sumireko-san…..!!?!!!


mafumafu - Icon 2021


Mafumafu’s comment:

I wrote the song “Hazard Symbol” for Yuyu.


After reading the entire manga, I focused on expressing the mysterious and supernatural elements through music. Yuyu’s distinctive and expressive vocal style has taken the song to an even more thrilling level than I initially envisioned.


Please enjoy it along with Mysterious Disappearances.


Product information

Title: Hazard Symbol

Artist: Yuyu

Release Date: May 15, 2024


Limited First Edition: VTZL-239 / ¥1,650 (inc. tax)

Regular Edition: VTCL-35373 / ¥1,320 (inc. tax)



  1. Hazard Symbol

Lyrics, composition, arrangement: Mafumafu

  1. Untitled track

And instrumental versions

*The Limited First Edition will also come with a special booklet.


Distribution information

Available on streaming services and major download sites such as the iTunes Store, RecoChoku, and mora from midnight on April 11.


Streaming services: Apple Music, Spotify, YouTube Music, LINE MUSIC, Amazon Music, Deezer, AWA, Rakuten Music, KKBOX, TOWER RECORDS MUSIC


Yuyu’s Profile

Born on July 30, 2007. A 16-year-old singer with a low body temperature.


Winning the Grand Prize in the Next Artist category of the “InuCon 2022!” FlyingDog Artist Discovery Audition, Yuyu made her major debut with FlyingDog. Her dark, atmospheric singing voice is unique, and she also writes lyrics based on her distinctive sensibilities. Serving as a spokesperson for the younger generation grappling with differences in values, Yuyu is poised to shape the future music scene.


She will perform the opening theme song of the TV anime Mysterious Disappearances, which starts in April, 2024.


Official HP: https://www.jvcmusic.co.jp/yuyu/

YouTube: https://www.youtube.com/@iamyuyuitsme8

TikTok: https://www.tiktok.com/@yuyu_official07

X: https://twitter.com/xxxwwwwwwwwww

Instagram: https://www.instagram.com/yuyu_official07/?igshid=NzZlODBkYWE4Ng%3D%3D




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