Yari-Tori Tokotoko (遣り取り床々) is a quick gambling game played by 2 players after they have finished a round in Tensho.
Despite bearing the names of Yari-Tori and Tokotoko, it has a unique setup and gameplay.
¶ Setup
First, prepare the deck as you would for Tensho or Hon-Bana by removing the 3 Chaff of 
Paulownia, leaving a deck of 45 cards.
Both players finish a round of Tensho, then each player takes 3 of the cards that were used in the game, and 2 cards from the draw pile, to make a hand containing 5 cards.
It is not specified whether the cards need to be shuffled first or not.
¶ Gameplay
Once both players have 5 cards in hand, players come to an agreement as to how much money to bet; both players must put up the same amount before the game can progress.
Once both players have put up the appropriate amount of money, each player then randomly chooses 2 cards in their opponent’s hand, and then the opponent discards those cards, leaving only 3 cards in their hand. Then the showdown begins.
The winner is the player whose hand has the highest value in the ones digit when the 3 card values are summed. That player earns all the money that was wagered. In the case of a tie, the pot may be split evenly among the winners.
Note that the card values follow the Nagoya suit order used in such games as Hiyoko and Isuri. For instance, 
Pine cards have a value of 1, while the Phoenix counts as a 6, and 
Peony cards each count as 11. Only the suit order matters, not any other characteristics of the card.
¶ Bibliography
- Tobaku Ni Kansuru Chōsa. vol. 121, Shihōshō Chōsaka, 1927, National Diet Library, dl.ndl.go.jp/info:ndljp/pid/1269696. pp. 68-69.