Uchouten Trigger

 (有頂天トリガー) was a five-member Japanese idol group unveiled on August 16, 2021.

They made their stage debut on October 11, 2021 @Zepp Yokohama, and disbanded in December of 2021.

Final Lineup

 * Tomoshiro Kanon (知白鹿遠; ) (Founding member)
 * Otoi Saki (音井彩希; ) (Founding member)
 * Onemu Rikka (おねむ りっか; ) (Founding member)
 * Aisaki Yuuri (藍咲ユウリ; ) (Founding member)
 * Niizuma Naoka (新妻直佳; ) (Joined October 11, 2021)

Trivia

 * All founding members were concurrent PLUMAGE members.