Perhaps the origin of the title "Mao no Ichi" Yoko Aomori also drew a manga based on this story. On Amazon, it said "it stops playing soon or cannot be played," but I bought it on a whim. As expected, it couldn't be played, so I contacted Kinokuniya Bookstore on a whim, and they recognized it as a defective product and exchanged it for this genuine one. It played properly on my computer and DVD player. The visual beauty of the costumes and backgrounds is also good. I am selling this for organization purposes.