It's true. Peace of mind was the key to good sleep. He used to worry about his life and the fact that he couldn't have children. Being a king for a powerful empire required him to prepare his successor. Without an heir of his own, he would have to choose one of his relatives. It might be one of his cousins or their offsprings.
It had created a lot of problems so far since they all tried to be the one chosen as his successor. He had become used to schemings and secret plots among his kins. It was so hard to see his extended family torn apart by their thirst for power.
If he had his own child, even if it was a girl, he could find a good man to marry her and then handed over the throne to his daughter and her husband.
The devil now was finally at ease and have peace of mind since he no longer had to worry about producing an heir to continue his family lineage. What's more, the girl had agreed to give him three heirs. THREE.
