Yui ga Jackson (ユイ・ガ・ジャクソン)
Utauuta (ウタウウタ) is a founding member of WAgg.
In March 2018, Utauuta took part in the WACK Audition Camp 2018 under the name "Yui Ga Jackson". However, she was eliminated on the first day without being offered a redemption challenge. Soon after, she auditioned for WAgg, WACK's official trainee unit, and was revealed as one of their founding members in August 2018.
In late March, Utauuta participated in the WACK AUDiTiON CAMP 2019. On day two, she was eliminated for a second time after losing a game of Daifugo.
In late March Utauuta took part in the WACK AUDiTiON CAMP 2020 for the third year in a row. She was eliminated on day three after failing to do the most squats.
- Is a big Togawa Jun fan and sang "Suki Suki Daisuki" (previously covered by BiS Kaidan) at her first WACK audition.
- She hates being reminded of her time in the 2018 WACK audition, saying that she has changed a lot since then.
- Struggles to express her emotions, causing staff members to describe her as "cold".
- Her audition name was a parody of Yui Ga Dockson.
- Utauuta's year of birth is rumoured to be 2002 (making her 17 years old), however, this is unconfirmed.