I had the past questions from Tokyo Hokei, but I couldn't understand the land issues, so I bought the Agarooth explanation set (2 volumes) on Mercari. I'm selling the second volume as I don't need it. Personally, I thought the explanations were more beginner-friendly than Tokyo Hokei. From Heisei 17 to Reiwa 2 This is the only book I am selling. It has been used, but there are no markings. Please purchase only if you understand that this is a used item.