Houpriyusu

 is a trainee unit of Houkago Princess. The members here are candidates and apprentices and are working on training so that they may eventually debut with the group one day.

Candidate members perform more regularly with the group and sometimes have a spot in one of the singles. The apprentice members perform mainly as backup dancers.

They were created on February 18, 2015.

Current Members

 * Horii Nina
 * Tanaka Asami

Former Members

 * Haruno Akane (Joined April 11, 2015, Withdrew July 6, 2015) (Apprentice)
 * Kamiya Airi (Joined March 7, 2015, Graduated March 20, 2016) (Apprentice)
 * Izumi Sakura (Joined June 9, 2015, Graduated March 20, 2016) (Apprentice)
 * Makihara Yuyu (Joined March 1, 2016, Graduated May 1, 2016) (Apprentice)
 * Nagasawa Marina (Promoted to Houkago Princess)
 * Sekine Sasara (Promoted to Houkago Princess)
 * Kojima Mayumi (Promoted to Houkago Princess)
 * Morishita Rina
 * Ota Nozomi