Sendai Girls' Pro Wrestling
On October 2, 2005, Jumonji, along with her sister Chisako, took part in a professional wrestling audition held by Meiko Satomura. After passing the audition, both of the Jumonji sisters were admitted to the first training class of Satomura's new Sendai Girls' Pro Wrestling promotion, and began training under her the following December. Jumonji made her professional wrestling debut on July 9, 2006, at Sendai Girls' first ever event, where she, working under the ring name Sachiko Kanari, was defeated by Kyoko Inoue. Much like her sister, Jumonji's career started with a losing streak, which finally ended on May 6, 2007, when she defeated Yurie Kaneko. In August, the Jumonji sisters began regularly wrestling together as a tag team, and on September 8, both of them were given new ring names, when Sachiko began wrestling as Sendai Sachiko and her sister as Dash Chisako. In late 2007, the sisters also began making appearances for Ibuki and JWP Joshi Puroresu, with one notable match seeing the Jumonji sisters defeating the Shirai sisters (Io and Mio) on December 31, 2007, at JWP's "5th Junior All Star" event.