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Peri-tan, Utasou

Other Names

Nagayama Yukiko (ナガヤマユキコ), Utatano Soyulu (雨汰々野そゆる)


October 5, 1999 (1999-10-05) (age 21)





Professional Information
Audition Camp(s)

BiS Reformation Audition
WACK Audition Camp 2018 (Mentor)

Years Active


Associated Acts

BiS, Attain Music, HOLY SHiTS, WACK Photo Club






Staff Account
WaVE Artist Page

BiS Information

Second Generation


Easy Life Member (人生楽勝担当)

Date Joined

September 3rd, 2016

Date Left

May 11th, 2019

Debut Release

Brand-new idol Society 2

Final Release

Are you ready?

Time in Group

2 years, 8 months, 8 days


Promoting Are you ready?

Promoting Don't miss it!!

Promoting I can't say NO!!!!!!!

Peri Ubu (ペリ・ウブ), formerly Utatano Soyulu (雨汰々野そゆる), is a Japanese singer.

She was previously part of WACK, being a Second Generation member of BiS from its formation to disbandment, as well as a member of HOLY SHiTS.

Since graduating, Peri Ubu has continued to perform as a soloist under WAvE, an avex subsidary.


Promoting Brand-new idol Society 2

Biography[edit | edit source]

2016[edit | edit source]

On March 13th, Peri Ubu was announced as a founding member of Nagoya-based idol unit Attain Music, under the name Utatano Soyulu.

Attain Music released the music video for "Ai no Monster", the only music video that Utatano would feature in, on May 22nd.

On August 11th, Utatano Soyulu withdrew from Attain Music, after auditioning for BiS' second generation.

From August 31st to September 4th, Peri Ubu took part in the BiS Reformation Audition under the name "Nagayama Yukiko".

On September 4th, during the audition's final day, Peri Ubu was announced as a founding member of BiS's Second Generation.

On November 16th, Peri's first album as a member of BiS, Brand-new idol Society 2, was released.

As a member of Attain Music


PERi UBU's BiS Audition Video

[edit | edit source]

2018[edit | edit source]

From March 12th to 18th, Peri Ubu participated in the WACK AUDiTiON CAMP 2018 as a mentor.

At the audition's concluding WACK EXHiBiTiON on March 18th, it was announced that Peri would be placed in BiS 2nd when BiS would split into two groups.

On July 26th, Peri Ubu was added to the shuffle unit HOLY SHiTS.

On July 30th, Peri ranked 6th in the BiS.LEAGUE election and remained in BiS 2nd.

During her second BiS Leauge, it was announced that Peri Ubu had ranked 4th on December 29th. However, as BiS.LEAGUE was announced to end the same day, she was not officially promoted to BiS 1st.

2019[edit | edit source]

On March 30th 2019, BiS announced that their current generation would disband and all current members, including Peri, would graduate from the group.

BiS' second generation officially disbanded on May 11th. During their final show, Peri Ubu announced that she would leave WACK entirely at the end of the month, using her remaining three weeks to search for work at another agency.

On May 31st, Peri Ubu's contract with WACK expired, and she left the company.

On June 14th, Peri Ubu announced that she had choreographed the debut single of the idol group MELiSSA.

From July 16th to 18th, Peri Ubu held a photography exhibition, "Re:nostalgic", taking place at Harajuku's DESIGN FESTA gallery.

On September 1st, Peri Ubu announced her debut as a solo artist under WaVE, a talent agency under Avex and TWH.

On October 3rd, Peri opened a Soundcloud account and released her first solo songs, "Birth" and "POI".

Peri Ubu's debut solo event "Born-Now." took place on her 20th birthday on October 5th.

2020[edit | edit source]

From January 25th to February 9th, Peri Ubu held her first solo tour, "Nice to meet you" at three different locations, where she performed several new songs.

On June 7th, Peri Ubu released her first digital single, Shape UP! The following month, Birth, a song posted to her soundcloud the previous year, was also released as a digital single. Her third consecutive digital single, BANG, was released on September 15th, with Rinne following on September 12th.

On October 5th, her 21st birthday and first anniversary of starting solo activities, a music video for Birth was released. In addition, Birth was re-released as a limited CD single, alongside BANG as a B-Side and a new song.

Peri Ubu's fifth digital single, Kiss&tell, was released on October 30th.

On November 29th, Peri Ubu released a new song, Mission. The next day, she held a 12-hour performance on YouTube. The event featured her walking around Tokyo selling merchandise and CDs.

Peri Ubu's next digital single, SELFIE-FRAUD, was released on December 27th.

Personal Life[edit | edit source]

Peri Ubu was a high school student prior to becoming an idol. She was very shy and had difficulty speaking to her classmates.

Profile[edit | edit source]

  • Stage Name: Peri Ubu (ペリ・ウブ)
  • Other Names: Utatano Soyulu (雨汰々野そゆる)
  • WACK Audition Name: Nagayama Yukiko (ナガヤマユキコ)
  • Birth Date: October 5, 1999 (1999-10-05) (age 21)
  • Bloodtype: 0
  • Nickname: Peri (ペリ)
  • Western Zodiac: Libra
  • Eastern Zodiac: Rabbit
  • BiS Role: Easy Life Member (人生楽勝担当)
  • WACK status:
    • 2016.09.04: Joined BiS
    • 2019.05.11: BiS Disbands
    • 2019.05.21: Left
  • WACK Groups:
  • Other Groups:
  • Overall Time in WACK: 2 years, 8 months, 8 days

Discography[edit | edit source]

Singles[edit | edit source]

Digital Singles[edit | edit source]

Songs[edit | edit source]

Publications[edit | edit source]

Other Media[edit | edit source]

Film[edit | edit source]

Lyricist Credits[edit | edit source]

Re:STUPiD[edit | edit source]

  • Give Me a Chocolate

B-Sides[edit | edit source]

Trivia[edit | edit source]

  • In her early days as a member of BiS, Peri was known to cry a lot on stage. In the present, Peri says she feels embarassed about that looking back.
  • Her audition name, "Nagayama Yukiko" is a parody of Nakayama Yukiko.
  • In an early interview, Pour Lui said that Peri had a similar personality to Yokoyama Rina.

Gallery[edit | edit source]

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