TJ (Tone Jewel)

TJ (Tone Jewel) (トーンジュエル) is an idol group, and the first group of TJ PROJECT. They were formed in February 2012 as simply Tone Jewel and later renamed themselves in July 2015.

2012

 * In February 2012, the group was formed under the name "Tone Jewel".
 * In August 2012, they had their major debut with their first single, SISTARS TRIP.
 * In October 2012, Kayama Riko graduated from the group.

2013

 * In April 2013, Takimura Sana joined the group.
 * In September 2013, Ayase Chihiro joined the group.
 * In October 2013, Sakura Kana graduated from the group.
 * In November 2013, Keekihime☆Yuumi and Takimura Sana graduated from the group.
 * In November 2013, the group was on hiatus until March 2014, while they recruited new members.

2014

 * In March 2014, Morimoto Moeka, Hazuki Miyabi and Miyashita Momoka joined the group.
 * In March 2014, it was announced that the members were now active as Tone Jewel trainees.
 * In November 2014, the group was on hiatus until July 2015, as they only had one remaining member active in the group.

2015

 * In July 2015, Yokoba Ayane and Itonaga Yuki joined the group.
 * In July 2015, it was announced that the group would be renamed to "TJ (Tone Jewel)".

2016

 * In July 2016, the first sister group of TJ (Tonel Jewel), "TWIST JEWEL", was announced.
 * In October 2016, the first single under the new group name (fifth single overall) was released.

2017

 * In July 2017, the second sister group, TRADITION JACK, was announced.
 * In October 2017, TJ (Tone Jewel) released their second single (sixth overall).

2018

 * In February 2018, the group announced it was going on hiatus.
 * In May 2018, all members except for Ayase Chihiro terminated their contracts and left the group.
 * In June 2018, Machimura Kana and Takayama Hinano joined the group, and they resumed activities.
 * In July 2018, the third sister group, End of Silence, was announced.
 * In August 2018, Takayama Hinano went on hiatus due to health reasons, and did not return to the group.
 * In November 2018, the group began promoting in Taiwan under the name "Tone Jewel".

Current Members

 * Ayase Chihiro (彩瀬千聖) (Joined September 2013)
 * Machimura Kana (町村かな) (Joined June 2018)

Former Members

 * Kayama Riko (嘉山璃子) (Original Member, Graduated October 2012)
 * Sakura Kana (沙倉香奈) (Original Member, Graduated October 2013)
 * Keekihime☆Yuumi (ケーキ姫☆優海) (Original Member, Graduated November 2013)
 * Takimura Sana (瀧村咲菜) (Joined April 2013, Graduated November 2013)
 * Morimoto Moeka (森元萌香) (Joined March 2014, Left November 2014)
 * Hazuki Miyabi (菜月雅美) (Joined March 2014, Left November 2014)
 * Miyashita Momoka (宮下桃歌) (Joined March 2014, Left November 2014)
 * Yokoba Ayane (横庭彩音) (Joined July 2015, Left February 2018)
 * Itonaga Yuki (糸永有希) (Joined July 2015, Left February 2018)
 * Takayama Hinano (高山緋奈乃) (Joined June 2018; Left Late 2018)

Singles

 * [2012.08.11] SISTARS TRIP
 * [2012.08.22] Kimiiro Note (キミイロノート)
 * [2012.12.30] Meguru Kiseki (メグルキセキ)
 * [2013.09.18] BLOOMING SONG
 * [2016.10.02] Diamond (ダイヤモンド)
 * [2017.10.22] Topaz (トパーズ)