In 2050, polygamy was accepted in Japan as well. It was possible for a man to have up to four wives, who were obliged to devote themselves to their husbands. It was after this polygamy was established that my husband was able to break up with his wife who disobeyed him even a little. Therefore, the wives desperately support the husband and work hard to have a child as soon as possible and snuggle up to the husband. It's a harem for a man.