10 Years Old (十年) - White Spirit Ring
100 Years Old (百年) - Yellow Spirit Ring
1,000 Years Old (千年) - Purple Spirit Ring
10,000 Years Old (万年) - Black Spirit Ring
100,000 Years Old (十万年) - Red Spirit Ring
1,000,000 Years Old (百万年) - Gold Spirit Ring
Optimal Spirit Ring Configuration
1st Spirit Ring: Less than 423 years old Spirit Beast
2nd Spirit Ring: Less than 764 years old Spirit Beast
3rd Spirit Ring: Less than 1,300 - 1,800 years old Spirit Beast
4th Spirit Ring: Less than 3,000 - 5,000 years old Spirit Beast
5th Spirit Ring: Around 12,000 years old Spirit Beast
6th Spirit Ring: Less than 20,000 years old Spirit Beast
7th Spirit Ring: Between 30,000 ~ 50,000 years old Spirit Beast
8th Spirit Ring: Between 50,000 ~ 100,000 years old Spirit Beast
9th Spirit Ring: More than 100,000 years old Spirit Beast