Saki is a Japanese anime series focused on the world of competitive mahjong. It follows the story of Saki Miyanaga, a high school student who initially dislikes the game but discovers her hidden talent. As she joins her school's mahjong club, she embarks on a journey to compete in the national tournament, meeting various skilled players and forming lasting friendships along the way. The series captures the excitement and strategy involved in mahjong through engaging character dynamics.