In order to counteract the phenomenon of financial and economic reversal, GOLFIN was conceived with the goal of providing income opportunities for individuals without capital to enjoy the game, aiming to foster wealth circulation from the wealthy to the less affluent. GOLFIN is a smartphone golf game that utilizes NFTs, allowing players to use NFT items like characters, golf clubs, and attire in gameplay. What sets it apart is its unique feature: players can strengthen their characters and items by actually playing rounds on real golf courses. By integrating gameplay mechanics where characters and items become stronger through playing golf, a sport accessible to people of all ages and genders, GOLFIN aims to contribute to the growth of golf participation.