Sakura works as a maid in the mansion of wealthy Fuyuhiko Hojo, who falls for her and makes her his wife. Miyako, another maid serving Fuyuhiko, resents their marriage across class lines. She conspires with butler Kirisaki to seize the Hojo estate and hires Hirinuma, who subjects Sakura to brutal training before putting her up for auction at a slave market. There Sakura is reunited with Fuyuhiko—also being sold as a slave.