If we record the past, the past will not be past and it will be kept to the future. In the summer of 2005, I took a trip to America and worked in the Mobile Amusement Park in Minnesota for two months. In this Amusement Park, I did various things that I never tried. I had a great fun with other international students, which became the most unforgettable experiences of mine. In order to record the special trip, I had designed an illustrative book.