ShiX

 was an idol metal group formed in late 2016 and disbanded on April 29, 2018.

A successor group called 15GERM was formed in 2019, with different music and style.

Final Line-up

 * Nokaze Hinano (乃風日南) aka Makai no Boss (魔界ノボス)
 * Amane Ringo (天音林檎) (Joined December 2017)
 * Mineta Nemi (峯田猫未)
 * Tamaki Rinku (玉樹凜久)

Former Members

 * Jinno Jiki (陣野 仁希)
 * Toto Aine (音音愛音)
 * Hajiro Rui (羽白塁)

Trivia
On March 17, 2018, the group gained the news after the group's leader Makai no Boss appeared on Nippon TV's show Ariyoshi Hanseikai and confessed her love for fellow group member Mineta Nemi, despite the group having a dating ban rule. Another member, Tamaki Rinku, took the opportunity to confess her love for Makai no Boss, for her surprise.

Makai no Boss then read a confession letter for Nemi, which accepted her feelings, thus becoming and openly couple, while Tamaki Rinku supported their decision.

A week later, they held an emergency briefing after a live and explained the situation to the fans, in which most of them celebrated their relationship.