One day, while I was living a happy life with my girlfriend Natsu, a group of yakuza suddenly appeared in front of us.According to them, Natsu was kept by the yakuza as payment for a debt, but he ran away.They try to leave the place with Natsu, but after a scuffle, they are all kidnapped.Then, the yakuza imprisoned us and told us with a lewd smile that if Natsu could endure a week of sexual training, we would both be released...
