Please be sure to read the profile before commenting. It states things like no price reductions. 2025-2026 Arithmetic KA Print Full Set Kaisei Course Problem prints, answer explanations Answer sheets are not included. Original. The name欄 will be erased before shipping. Used, stored at home. Please understand that these are used items stored at home and used by children. Almost all of them have writing, red circles, score markings, comments, etc. Please purchase with the understanding that this is the case.