I accidentally purchased this. I haven't used it, but it had some writing and markings when I received it from the previous seller. The answer sheets are all there, but they are loose. "Sukkiri Wakaru Nissho Boki 3-kyu (Clearly Understandable Japanese Bookkeeping Level 3)" Nanami Takizawa Price: ¥950 #NanamiTakizawa #Takizawa_Nanami #book