Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
唯華 and Hidekazu, who have a happy newly-married life, are going through their summer holidays. They are supposed to enjoy a trip with their friends and a honeymoon with the two of them alone. But with the return of 唯華's sister, Hanaon, there will be a big disturbance? "Brother-in-law, do you love me because I'm the second?"