We were living a blissful life with my girlfriend SUI, but one day, a group of Yakuza suddenly appeared before us. They claimed that SUI had escaped from being kept as collateral for a debt. As we tried to leave with her, a scuffle ensued, and we ended up being kidnapped together. The Yakuza then imprisoned us, saying that if SUI could endure a week of aphrodisiac-induced intense sexual training, they would release us both. They smirked with a sinister grin as they uttered these words...