I have a very accomplished older brother who is working overseas. Unlike me, he is trusted by my parents. But he has returned to Japan for the first time in a long time. And he has brought his foreign fiance! My brother's wife, who has started living with us, is trying her best to impress the family in Japan, where she is not used to living. One day, my brother told me that he might be working all night, and that his parents are away on a trip... It was a night alone with me and my brother's wife. We ended up drinking together, and when she got drunk, she became strangely sexy... I couldn't help myself...