When they reunited ten years later, the eldest brother who had grown up with him had become his enemy. One day, a black figure sneaked into the military advisor's tent and threw the military advisor on the couch. "The night is long, why don't the military advisor and the king do something that is good for physical and mental health?" Later, the soldier on duty outside the account said that there was always an indescribable sound coming from the account. The next day, a certain prince returned to the army, rubbing his waist, and announced that he had twisted his waist while riding and his lower body was sore and weak. When the military advisor heard this, he smiled slowly.