In the fifteenth year of the Northern Kingdom, Emperor Beiyang was seriously ill, and his power was constantly weakened by the Prime Minister Sun Wen who was in charge of the Ministry of Civil Affairs. Sun Wen covered the sky with one hand, was as rich as the enemy, and his ambitions were obvious. The treasury of the Northern Kingdom was in short supply, the punishments were cruel, and the people were in dire straits.
Purpose: solve the case and take revenge