Gameplay is deceptively simple. On the map screen, click on the lantern on Fukiyama to begin.
Click on matching pairs of tiles to remove them. Keep going until you remove all of the tiles. If you cannot find any pairs, click on the tip button to highlight matching pairs. If there are no pairs, click on the reshuffle button to shuffle the tiles.
If you have any more questions about game play, consult the Aki Handbook inside the Aki folder.