Yuu is sold by her husband and brought to a mansion. There, she finds herself at a human auction called "Reiban," a married woman slave market. Because she is blind, no buyer wants her—until she has a fateful encounter. That night, auctioned off as a slave, Yuu becomes so nervous that she wets herself in front of the bidders. The auction ends in chaos, and the furious owners take out their anger by sexually tormenting Misa in front of Yuu. At the next day's "Reiban," Yuu appears before the customers with a new determination.