Yin and Yang teachers can exchange codes for each number once. According to the official regulations of the game of Yin and Yang Master, the gift package of Yin and Yang Master includes 200 gouyu, 10000 gold coins, 1800 physical strength, 40 cherry cakes and two celestial thunder and drum enchantment cards. There are many contents in the gift package. Each account can only receive the redemption code once, and multiple recipients will not be issued.