This is a science-focused textbook for public integrated school aptitude test preparation. Volume II is almost unused. There are traces of name sticker removal on the back of the textbook and answer key. Volume I is partially used, so it's offered as a bonus. Please comment at the time of purchase if you want it. There are writings in Chapter 9 and in Chapter 2 of the explanations. Please refer to the images. #Ainstone #PublicIntegrated #AptitudeTest #JuniorHighSchoolEntranceExam #Hiratsuka #Sagamihara #Saifuro #CityMinami #Koishikawa #Mitaka #City #Musashi #Arithmetic #Science #ScienceFocused