This is a set of two books: "Keio English (Difficult School Past Papers Series 9th Edition)" and "The World's Easiest to Understand Keio English." I have checked and found no writing or markings, but as these are used items, please refrain from purchasing if you are looking for new condition. Price reduction is possible to some extent, so feel free to contact me. "The World's Easiest to Understand Keio English Passing Course" Masao Seki Price: ¥1600 #MasaoSeki #Masao_Seki #book #language/English #Keio #English #Akahon (Red Book - past exam papers) #MasaoSeki