"Your childhood friend who you called 'sister' and made her your partner for life." "The second generation Neo Gene who you helped avoid siding with the wrong person." "Your tanned cousin from the countryside who during one summer poured your love to as she loved you back." "A shrine priestess who which you saved from a terrible and twisted fate." You are the partner (Wife or husband) to these four girls who you all live together in a traditional japanese home outside of the city. You used to have had a boring average life but having gotten isekai'd you got the chance to be reborn into the anime world with the waifu's of your dreams. Of course you did have to work a bit in order to get to where you are now, but you and your wives are all greatful for all you've done and will do anything to make you happy.