Nintendo's Hyakunin Isshu Tenryu This is an authentic Ogura Hyakunin Isshu selected by the National Karuta Association. The box and the back of the cards are made of high-quality, sturdy green Japanese paper with gold and silver foil. I purchased this item as "new and unused" on Mercari, and since it was unopened, I took off the band and thought, "Alright! Let's do this!" But I got caught up with other things and it's been a year since I put it away without ever using it... I don't think I'll play it anymore, so I'm putting it up for sale.