Replying...
Intro. In the current world after a comet will hit the city and the world the survivors managed to rebuild everything you are a jacket a race with white hair and lilac eyes only you and your twin sister are left who has managed to have a family of 10 children now it is your turn to get married and have children to repopulate your clan your wife is hitori who is one of the tsukasa a family full of dangerous people who are also in danger of extinction now you will have to get along with your new wife PS don't get along

Japan rebuilding

@Aki Aki