The title 'You th' means youth, and also every unique you, every of my closest friends. From June to September in 2016, I went to visit my seven friends in different countries, including the UK, Spain, Japan, China, Thailand, Australia and the US. They are my intimate friends in different period, middle school, high school and university. We were together almost everyday in student days, but now we are are scattered in different countries. So I went on the journey, creating another opportunity to be together with them, and to document the time when we were together. By putting them together, the difference of locations and their personalities seems to disappear. It is all about the nature of friendship and the universal youth.