Nina Nishimura
Debuted under the name Kaede Oosawa (大沢かえで) in June 2010 and retired in September of the same year.
Re-debuted as Koyomi Yukihira (雪平こよみ) in April 2014 and Nina Nishimura (西村ニーナ) in July 2015, then retired in May 2016.
Returned for the second time in June 2017.