MCS (Magic stone link, Rubik's cube chain) starts from the promotion of game change. By establishing a scientific and reasonable game system, it promotes Rubik's cube simulation games to the world, promotes quality education and parent-child interactive education, and comprehensively develops learners' brains, Comprehensively improve the quality of quality education. MCS is a Token based on the Ethereum technology chain issued by Rubik's Cube Chain. It not only has circulation value, but also is a necessary Token based on Rubik's Cube Chain applications. It can be circulated in overseas exchanges. In Rubik's Cube chain, the payment method of all transactions will be completed by MCS. MCS will be the only payable Token of Rubik's Cube Chain.