Maison book girl

 is a Japanese idol group formed in 2014 by former BiS member Koshouji Megumi. Their name is sometimes abbreviated as Bukuga (ブクガ) or MBG.

They had their United Kingdom debut on 2017 with the 7-inch vinyl "karma" (Read The Air Records). On May 2018, they will have their first United Kingdom tour with 4 performances.

Current Members

 * Koshouji Megumi (コショージメグミ)
 * Yagawa Aoi (矢川葵)
 * Inoue Yui (井上唯)
 * Wada Rin (和田輪) (Joined March 27, 2015)

Former Members

 * Munemoto Kaori (宗本花音里) (Left March 27, 2015)

Singles

 * [2015.03.14] black
 * [2015.03.14] white
 * [2016.11.30] river (cloudy irony)
 * [2017.06.19] 412
 * [2017.12.13] cotoeri

EP

 * [2016.03.30] summer continue

Albums

 * [2015.09.23] bath room
 * [2017.04.05] image (Maison book girl)