More Children, More Blessings: The System Gave Me the Blood Skull Gu

[Harem, multiple heroines, System] Shenyu transmigrates into a cultivation world. He obtains the more children, more blessings System. At first, the System only gives him very ordinary resources as rewards. That is, until his descendants reach a hundred. Then the System rewards him with a Blood Skull Gu. Shenyu: “System, are you serious? A Blood Skull Gu?” [System notification: This is the best way to improve your talent.] Shenyu looks at the Blood Skull Gu, then at his descendants, and falls into deep thought.