XTEEN

 (クリスティーン; pronounced as Christine) is a Horror Punk Idol unit formed on February 5, 2018, and debuted on February 25, 2018.

Their music is produced by EURO, vocalist of SPEED-iD.

Current Members

 * Himekusa Hinako (姫草雛子) (Original Member)
 * Kujo Shion (楔條詩苑) (Joined May 13, 2018)
 * Amatsuki Ana (天月綺々奈) (Joined January 10, 2021)

Former Members

 * Jinguu Roi (神功ロイ) (Original Member; Withdrew February 2018)
 * Muon Anzu (六苑あんず) (Original Member, Withdrew May 8, 2018)
 * Kirishima Narumi (桐島なるみ) (Original Member, Withdrew May 8, 2018)
 * Shinonome Ichica (東雲一加) (Original Member, Graduated August 14, 2018)
 * Aoi Ru (蒼井ルー) (Joined August 14, 2018, Withdrew October 1, 2018)
 * Yulianne (ゆりあんぬ) (Joined August 14, 2018, Graduated August 26, 2019)
 * Jinja Eru (神社エル) (Joined May 11, 2019, Withdrew July 26, 2020)

Trivia
The group was named after Stephen King's horror novel Christine.

Singles

 * 1) [2018.04.25] Eclipse
 * 2) [2018.10.31] ROMANTICIST
 * 3) [2019.10.30] THE NEW BLACK
 * 4) [2022.03.25] GLORIA