AKB48 new sister group STU48 

It was announced in AKB48 Janken Tournament 2016, AKB48 will setup a new sister group "STU48" (瀬戸内48) in 2017 Summer.

STU48 is a sister with no theater Japanese City, their theater is on board. STU, short for SeToUchi, is a region of Japan, encompassing the areas of Honshu, Shikoku, and Kyushu that border the Seto Inland Sea.

Yamaguchi, Hiroshima, Okayama, Hyogo, Ehime, Kagawa and Tokushima