Yotsuya Otsuka Yosho Series 6th Grade New, Unused 4-Subject Set Mathematics Japanese Language Science Social Studies Each with Answers and Explanations ① Japanese Language Yosho Series Volume 1, with Answers, New, Unused ② Mathematics Spring Seminar, with Answers, New, Unused ③ Mathematics Summer Seminar, with Answers, New, Unused ④ Science Spring Seminar, with Answers, New, Unused ⑤ Science Summer Seminar, with Answers, New, Unused ⑥ Social Studies Spring Seminar, with Answers, New, Unused ⑦ Social Studies Summer Seminar, with Answers, New, Unused New, Unused I was going to go through it again, but I didn't use it. There may be oversights or scratches, folds, and stains on the cover. Please be understanding. For those who understand that this was used by a child. These are very good textbooks.