The fortune teller said that my marriage is not good, and a ceremony can solve it.

Pure Yin constellation means that the heavenly stems and earthly branches attribute in your constellation is all negative.

For example, heavenly stems: A, B, C, D ... .

A is Yang wood, B is Yin wood, C is Yang fire and D is Yin fire. etc

So is the earthly branch.

There are many sayings of eight-character pure yin. There is a saying in marriage that a person with eight-character pure yin matches a person with eight-character pure yin.

I hope it will be helpful to you and I hope it will be adopted.