① "Children Who Passed Keio Yochisha, Waseda Jitsuyo Shoto-bu, and Tsukuba Elementary School, and Those Who Didn't: Learning from Parents and Children Who Failed the Entrance Exams" Kenji Yamagishi Price: ¥1300 ② "9 Super Basic Principles for Passing Keio Yochisha, Waseda Jitsuyo Shoto-bu, and Tsukuba Elementary School" Price: ¥1430 ③ "Child-Rearing to Help Your Child Pass Keio Yochisha, Waseda Jitsuyo Shoto-bu, and Tsukuba Elementary School" Price: ¥1300 These three books are being sold as a set. Book ① and ② have some corner folds, but are in good condition. Book ③ has had its binding opened, but this does not affect usability.