On January 15th, Nakayama Yukiko's first recording, the digital single Taiyou no Jumon, was released.
Nakayama released her only album as a member of BiS, Brand-new idol Society on March 23rd 2011.
On August 3rd, Nakayama Yukiko released her first single as part of BiS, My Ixxx.
On December 20th, Nakayama Yukiko announced that she would be graduating from BiS at the end of the year. While she claimed her reason for graduating was because she no longer found BiS fun, it was speculated that the real reason was due to arguments between herself and Pour Lui over private photos of Nakayama that were shown in the music video for primal.
Nakayama Yukiko graduated from BiS on December 30th, 2011, ten days after initially announcing it.
On June 5th, Nakayama founded the band Morphine Tokyo, of which she was the vocalist.
Morphine Tokyo's debut live took place on September 22nd.
Morphine Tokyo's first single, Tokyo Night, was released on March 17th.
Nakayama Yukiko appeared as a guest at the disbandment live of BiS' first generation on July 8th.
On April 29th, Morphine Tokyo went on hiatus after Nakayama Yukiko was hospitalized.
On November 11th, Nakayama's 24th birthday, she announced that Morphine Tokyo had disbanded.
Nakayama Yukiko formed a new band, the End, on December 30th.
The End's first digital single, CLAP, was released on January 31st.
In late 2017, the End went on hiatus after Nakayama Yukiko became pregnant. They were due to release their debut album, Re: End on December 7th but its release was cancelled.
On August 4th, Nakayama Yukiko announced that she would be producing a new idol group and was currently holding auditions for girls under 23.
On October 12th, the name and line-up for the Yukiko-produced group, Kimi no Mawari., was announced.
Nakayama Yukiko stepped down as the producer of Kimi no Mawari. at their first oneman live on May 18th.
Personal Life Edit
In 2015 Nakayama Yukiko was admitted to a mental ward after experiencing suicidal feelings. After being discharged, she did not leave her home for about a month.
In 2017 Nakayama married a man whose identity is unknown. She gave birth to a son in early 2018. Upon getting married, she began studying to become a dietician.
- Stage Name: Nakayama Yukiko (ナカヤマユキコ)
- Birth Date: November 11th, 1991 (age 28)
- Birthplace: Saitama, Japan
- Nickname: UK
- Western Zodiac: Scorpio
- Eastern Zodiac: Goat
- BiS Role: Commanding Officer of Suicide Squad Member (特攻隊長兼スベリ担当)
- BiS status:
- 2010.12.09: Joined BiS
- 2011.12.30: Graduated
- WACK Groups:
- BiS (2010-2011)
- Other Groups:
- Has a tongue piercing.
- Is a fan of Aina The End and frequently tweets her.
- Her name has been parodied twice in WACK's audition camps; first by Peri Ubu, then again by Nagayama Yukiko.