“For her first summer vacation, my sister went to California with a couple of friends on a package tour put together by her agency. One of the members of the tour group was a computer engineer a year her senior, and she started dating him when they came back to Japan. This kind of thing happens all the time, but it's not for me. First of all, I hate package tours, and the thought of getting serious about somebody you meet in a group like that makes me sick.”