This is a used item from a child. It was solved in a notebook, so there are no written notes! (Sorry if I missed anything (・_・;)) Please understand that the paper cover may have wrinkles and scuffs. Please also understand that the inside may have folds, wrinkles, and pencil smudges when opened. There is dirt on the bottom (photo 7). I believe it can still be used! This is a used item, so please only consider it if you are not concerned about minor details and understand the above reasons (*'ω'*) Suken Publishing List price: ¥1078