相亲对象是个问题学生

The next item to be auctioned is the Purple Cloud Crystal, which is a treasure that can be used to upgrade various natural wings, whether they are Silver Star Wings, Sky Cloud Wings or Hidden Thunder Wings. If you want to upgrade, you must use Zixiao Xuanjing. The base price of Zixiao Xuanjing is 10 million green coins. Each price increase shall not be less than one million green coins...