Review Detail of SleepFox in The Lord’s Empire

This novel has an interesting beginning, with a theme of using the family lineage of the mother / father, I do not remember, to take revenge on the family of the mother / father who pressed them. But it is only when they begin to enter the other dimension that he is worthy of being called an OP with a kingdom with the best weapons, generals, buildings, officials, to the point that all other countries are waiting to be crushed for their supreme ability of main character.