C525 Fruit of life looking for zhong shuang 17

Every time he turned from a Golden-Winged demon to a mixed blood demon, then from a mixed blood demon to a Golden-Winged demon, that was a complete assimilation period. Every assimilation period was different, and some Golden Winged people even needed a hundred years to assimilate.

Furthermore, every assimilation required a longer interval. Without fifty years of foundation, it was too urgent