MONSTER GIRLFRIEND

 was an EDM idol group formed in July 2018.

The group entered a hiatus on October 20, 2019, claiming that the group would be preparing and practicing to reach further heights. However, as of 2021, the groups' official accounts on Twitter, Instagram and YouTube were deleted, indicating that the group is over.

Final Line-up

 * REIA (藤塚レイア) (Original Member)
 * MONICO (モニ子) (Original Member)
 * OTONE (天野おとね) (Original Member)
 * MAYA (Original Member)
 * BOTAN (神丸ぼたん) (Joined December 19, 2018)
 * CHUCHU (ちゅちゅ) (Joined December 19, 2018)

Former Members

 * MARIKA (まりか) (Original Member, Left October 5, 2018)
 * SHIZUKA (遠藤しずか) (Original Member, Graduated December 20, 2019)
 * MIZUKI (松村美月) (Joined December 19, 2018, Graduated December 20, 2019)
 * MIKA (Joined December 19, 2018, Graduated December 20, 2019)

EP

 * 1) [2019.02.19] GIRL ver.01
 * 2) [2019.04.29] GIRL ver.02

Singles

 * 1) [2018.07.28] KAIJU NIGHT
 * 2) [2018.10.05] Mikakunin Koufuku (未確認幸福)

Trivia

 * The group originated from a concept restaurant called KAIJUMUSUME6.
 * At the time of their debut, choreography was made by members SHIZUKA and REIA.
 * Members wore wigs as part of their costumes until December 19, 2018, when they switched to natural hair and a new costume.