Earth-Shattering Victory in the Sky

The old king is declining, and the fourth prince is neglected. A royal family with many factions and a turbulent dynasty! The bad news about the rise of alien races, the war-torn border... The boy who was forced to leave returned ten years later and set off again, walking step by step towards the wilderness. He wanted to compete with God and asked, who is responsible for the ups and downs of the vast land?