Hentai no koi chô: Seikei biyôzuma.

Hiroshi and Yukiko met at a matchmaking party in China and got married. Yukiko, who is a Chinese national, was reluctant to go to Japan, but Hiroshi came to Japan because it was impossible for him to work in China because he could not speak Chinese. His younger brother Jiro and his wife Mineko live in his family home. A few days later, Jiro told Hiroshi that it would be better not to have children because Yukiko might be after his fortune...