Jounetsu hermit

 (情熱hermit) was a sub-unit of HR formed in March 2013 from the members of the group's 9th Generation.

They seem to have gone inactive around February 2016.

Final Line-up

 * Aikawa Reika (藍川れいか)
 * Kojima Nao (小嶋菜生)
 * Hashimoto Nana (橋本菜々)
 * Yoshimura Tamami (吉村珠実)
 * Ryuu Yuina (龍ゆいな)

Former Members

 * Oshima Akane (大島愛奏) (Graduated April 19, 2014)
 * Asada Hikaru (浅田ひかる) (Graduated June 30, 2014)
 * Monji Kotoko (門司詩子) (Graduated June 30, 2014)
 * Hayashi Yuuka (林優花) (Graduated November 28, 2014)
 * Shimada Saki (嶋田早希) (Graduated March 25, 2015)
 * Tanaka Momoka (田中李佳) (Graduated August 30, 2015)