R.I.P. Kenkyuujo

 (R.I.P.研究所) is a five-member Japanese idol group formed on December 7, 2021.

They made their stage debut on December 18, 2021 @Okubo K-Stage.

Members

 * Kagoshima Nana (篭島奈那; )
 * Usada Rion (兎田りおん; )
 * Chiaki Yuuri (ちあきゆうり; )
 * Ichizu Anzu (いちずあんず; )
 * Kuriki Remon (くりきれもん; )