A book explaining taboos and rules of love between couples. - Title: Smart Couples: The Art of Consideration - Author: Kohei Matsumoto - Price: 1600 yen + tax - Content: Explanations of taboos and rules of love between couples. Purchased new and read only once, then stored on a bookshelf, so it's in relatively clean condition. However, there is a stain on the back cover as shown in photo 5, and a tear in the obi (sleeve) as shown in photo 6. Please understand this before purchasing. Thank you for looking.