Kuusou to Mousou to Kimi no Koi Shita Sekai

 (空想と妄想とキミの恋した世界) was an idol group that debuted in December 2018. Their concept was "absolute fashionable cute idols" (絶対的オシャレカワイイアイドル).

They disbanded on October 3, 2021 due to Nakayama Miru and Imai Nagisa's decisions to terminate their contracts with the agency. After their disbandment, they were succeeded by TheWORLD.

Current Members

 * Nakayama Miru (中山みる) (Founding member)
 * Arisawa Arisa (有沢ありさ) (Founding member)
 * Matsuki Mayuu (松樹マユウ) (Founding member)
 * Imai Nagisa (今井なぎさ) (Joined March 2019)
 * Kato Nano (加藤なの) (Joined January 2021)

Former Members

 * Hinata Riko (日向莉子) (Founding member; left pre-debut December 2018)
 * Shiina Meru (椎名める) (Founding member; graduated March 2019)
 * Miyaji Madoka (宮地マドカ) (Founding member; graduated March 2019)
 * Horii Miyu (堀井美佑) (Joined March 2019; left October 2020)
 * Nakatani Runa (仲谷瑠夏) (Founding member; graduated July 2021)