"Top Level Problem Collection: English for 2nd Year Junior High School Students" Seiji Sato Price: ¥1100 This is a reference book used at a cram school. It is also sold at bookstores. I studied in a notebook, so there are no answers written in the book, but there are pink star marks written next to the problem numbers. Other books in the same series are also on sale. Bundle discount available. #SeijiSato #Seiji_Sato #book #language/English