Tokkuri Taking is a game in which you will use the cards in your hands as either tokkuris, a traditional sake drinking vessel, or to drain some of the sake from the tokkuris on the table.
On your turn, either play a card face down as a tokkuri, or face up. If you play it face up, you must lower the sake level in tokkuri on the table corresponding to the number(s) on the card you played. A round ends once all players have played all of the cards in their hands.
Players will earn positive points for tokkuri they emptied and lose points for those in front of themselves that have too much still in them. The player with the lowest score then takes points equal to the difference between their score and each other player's score - from the other players!