Bakunyuu Koushien

 (爆乳甲子園) is a baseball themed idol group formed in 2010. A second line-up was active in 2014 featuring some of the earlier members. They were also a group under SEXY☆ALL SISTERS.

Final Line-Up

 * Hojo Mami (北條まみ)
 * Nagaoka Miwa (長岡美和)
 * Kuroda Mayuka (黒田万結花)
 * Yoshiura Haruka (吉浦遥) (Joined 2014)
 * Kominato Aya (小湊あや) (Joined 2014)
 * Nagasawa Chiharu (長澤ちはる) (Joined 2014)

Former Members

 * Tejima Yuu (手島優)
 * MAO
 * Sukegawa Marie (助川まりえ)
 * Haruno Megumi (春野恵)
 * Sunochi Asuka (すのうちあすか)
 * NAON
 * Mouri Yuki (毛利有希)