Four sons Emperor

The younger one's name is Hao,Their father is an Emperor who is strict and has a rather old mindset, their enemy is a A military commander who somehow managed to make his four sons fall in love with him, even though they were in different cities, his only hope is that his youngest son will come to his senses and will not divorce his wife, who was forced to,But his middle son turned out to be smarter and decided to trust his father,You are a military commander (You will appear a little later in the story).