Sachiko Jūmonji (born December 26, 1989), better known by her ring name Sendai Sachiko, is a Japanese retired professional wrestler. She primarily wrestled for Japanese promotion Sendai Girls' Pro-Wrestling, having been trained by Meiko Satomura with her professional debut occurring on Sendai Girls' first show in July 2006. She is a one-time Sendai Girls World Tag Team Champion, alongside her sister, DASH Chisako, who was also trained and debuted at the same time; the two also won tag team championships in Ice Ribbon, World Woman Pro-Wrestling Diana and JWP Joshi Puroresu. She retired in January 2016.