You can buy and sell bitfan points.
You can earn bitfan points just by playing, such as joining a fan club, participating in events, purchasing goods, and participating in SNS. In "Trade", you can sell your bitfan points with an arbitrary amount. You can also buy bitfan points that have been sold and increase your own points. It is a happy system for everyone to help return 10% of the transaction amount to the owner who issues bitfan points.