One day, while I was spending happy days with my girlfriend Miyu, a group of yakuza suddenly appeared in front of us. They told us that Miyu had been kept by the yakuza as collateral for a debt, but had run away. We tried to leave with Miyu, but after a scuffle, we were all kidnapped. The yakuza then imprisoned us, and with a lewd smile said that if Miyu could endure a week of drug-induced sex training, they would release us both...