The room is lend in parents family of sister-in-law in the two-generation house!? It is strong-minded and it a dignified sister-in-law "Kyouka", Mother of sister-in-law that it is kind and taking care of someone is good with who motherhood overflows "Chikako". While living with the beauty mature wife and a beautiful woman wife ―― The relation with two people begins to change little by little. Kyouka-san and Chikako-san. It's you's who is having to choose either of two charmer wives...

This is the Kyouka version.