Why did Xingjun's father kill his mother Igor?

Xingjun's father just doesn't want his mother to be an obstacle to his plan.

Finally, Xingjun's father said that he had visited her three times. If she hadn't died, he wouldn't be determined to continue his plan. This is why Xingjun's mother was implanted with cancer.

It should be that the father of the star owner really loves his mother. It is true that Igo has so many sons, but only the star owner can use his magical power.

Only by mating with love can we transmit the genes of divine power.