In Couperation (クーペレイション), players try to play cards from their hand to create a card pyramid seven layers high while staying within certain rules for the placement of cards.
If you manage to create a card tower seven layers tall (i.e., with 28 cards) and all those cards are face up, then you win.
NOTE - if you need rules in English, they are available for download HERE. This English language rulebook is not included in the game.
For more information, please refer to the BGG listing.