WACKi Wiki
WACKi Wiki

Dogenzaka43 Profile

Promoting Youji to Tsuki no Hime

Promoting NATASHA

Promoting DEADMAN

Promoting OTNK

Promoting Brand-new idol SHiT

As a member of Tsuyogari Sensation

Cent Chihiro Chittiii (セントチヒロ・チッチ), formerly known as Aoi Chihiro (蒼井ちひろ), is a Japanese idol under WACK, as a founding member of BiSH, and formerly, their captain. In addition, she is a member of the shuffle units, HOLY SHiTS and Dogenzaka43, as well as the band, SPiCE TRAVELERS. She joined WACK in 2015.



On August 17th, 2014, Cent Chihiro Chittiii joined the underground idol group Tsuyogari Sensation as a founding member, under the name Aoi Chihiro.


On February 15th, 2015, Aoi Chihiro graduated from Tsuyogari Sensation without releasing any material, and auditioned for BiSH around the same time.

Chihiro was announced as a founding member of BiSH on March 9th, 2015. Upon joining BiSH, she changed her stage name to Cent Chihiro Chittiii and was designated the role of BiSH's captain.

Cent Chihiro Chittiii's debut release, Spark, was released on March 25th.

On May 27th, Cent Chihiro Chittiii's first album, Brand-new idol SHiT, was released.


On April 27th, Cent Chihiro Chitti collaborated with GHOST ORACLE DRIVE to provide a song, "Human After All" for the anime GOD EATER. The song was used as the ending theme for the 6th episode and included on it's soundtrack album, "GOD EATER Sounyuu Kashuu".

On March 20th, Chittiii was demoted from Captain to "Bag Lady" after failing a DiET or DiE challenge.

When Ayuni D joined BiSH in August, she took Chittiii's original "Little Sister" member role during her debut live. Afterward, Chittii's new role was changed to "Serious on the outside, scoundrel on the inside, but I can only have up to two boyfriends", a reference to the song "SCHOOL GIRLS, BANG BANG, which she wrote the lyrics to.

Chittiii joined the "Idol Supergroup" NATASHA, on September 1st.


On December 31st 2017, it was announced that Cent Chihiro Chittiii had received the most votes in the WACK General Election and would be rewarded with a solo single alongside Aina The End.


On March 7th, Cent Chihiro Chitti and Aina The End provided vocals for the song "Wasted Tears" on Marty Friedman's album, 「B: The Beginning」THE IMAGE ALBUM.

On July 26th, Cent Chihiro Chittiii was added to the shuffle unit, HOLY SHiTS.

Cent Chihiro Chittiii and Aina The End's election solo single, Youji to Tsuki no Hime / Kienaide, was released on September 19th, with Youji to Tsuki no Hime being Chittiii's solo song.


In late October, Cent Chihiro Chittiii began co-hosting a cooking show, "Spice Travelers", on Fuji TV.


From March 22nd to 28th, Cent Chihiro Chittiii participated in the WACK AUDiTiON CAMP 2020 as a mentor. In an interview given prior to the camp, she said that while audition camps are always sad, she wanted it to be a kinder one this year.


In mid-June, Cent Chihiro Chittiii, along with every other active WACK member at the time, joined the shuffle unit, Dogenzaka43. Her only single as part of the group, Kyouniku Jakushoku ~Tsuyoi Yatsura wo Kucchimae~, was released on June 16th.

On July 29th, it was announced that Chittiii would be joining the band, SPiCE TRAVELERS, as its vocalist. The band is a branch-off from the television series of the same name that she had been hosting since late 2019.

On August 7th, it was announced that Chittii had been infected with coronavirus, and would need to take a break from activities. This news came just a day after Aina The End had been revealed to be suffering from the same illness.

While she was still in quarantine, it was revealed that Chittii would voice the character of Azuki Arai, in the upcoming RPG game, Ragnador. After making a full recovery, Chitti resumed activities on September 1st.

Personal Life

She was bullied at school, causing her to become introverted and channelling her frustrations into softball. Her confidence improved after entering high school.


  • Stage Name: Cent Chihiro Chittiii (セントチヒロ・チッチ)
  • Other Names: Aoi Chihiro (蒼井ちひろ)
  • Birth Date: May 8, 1993 (age 28)
  • Birthplace: Hachiouji, Japan
  • Height: 152.7cm
  • Blood Type: AB
  • Nickname: Chitti (チッチ)
  • Western Zodiac: Taurus.png Taurus
  • Eastern Zodiac: Rooster
  • BiSH Role: 
    • Serious on the outside, scoundrel on the inside, but I can only have up to two boyfriends member (見た目は真面目、中身は悪女これでも彼氏は2人まで担当)
    • My little sister can't be this cute member (僕の妹がこんなに可愛いわけがない担当) (Former, 2015-2016)
  • WACK status:
    • 2015.05.09: Joined BiSH
  • BiSH Colour:  Light Blue
  • WACK Groups:
  • Other Groups:
  • Overall Time in WACK: 6 Years, 6 Months, 17 Days


See Cent Chihiro Chittiii Discography Featured In


Other Media

Live Video



  • [2019.10.25-Present] Spice Travelers (スパイストラベラー)


  • [2021.09.xx] Ragnador (ラグナドール) (Azuki Arai)

Lyricist Credits


  • Likes Pokemon and horror movies.
  • Was obsessed with idols as a child, until her favourite members all left.
  • Her stage name is a reference to the film "Spirited Away", titled "Sen to Chihiro no Kamikakushi" in Japanese. "Sen to Chihiro" is pronounced the same way as "Cent Chihiro".
  • As a BiSH founding member and captain, Chittiii is currently the most senior member of WACK.


Preceded by
Kamiya Saki
Most Senior Member of WACK
Succeeded by