START-233 A foreign financial man's brother who is back home for the New Year holidays and a sister who works as a salesperson at a local mobile phone shop. They have a secret meeting in the bathroom while their parents are in the living room. Ayase

They’ve been in love with each other for eight years, and in a relationship for seven. Since the older brother left his parents’ home, they’ve been meeting once every three months. Thinking about public opinion and their future, the two of them make a promise not to see each other for the time being for the time being. They try to see if one of them can find someone else to love, but of course it’s impossible for two people with such crazy romantic interests. The brother and sister promise to live together in Tokyo.