Her husband is serious, and his hobby of stock investment is going well. Two thugs sneak into Yumi's happy life. Yumi is tied up and raped. They were her husband's brothers. Daiki, who happened to witness it, becomes obsessed with the allure of the ropes digging into Yumi's flesh. Using the secret as a shield, Daiki applies 'bondage' to Yumi. Yumi begins to find pleasure in being tied up and raped...
