I Just Wanted to Be a Prince, but Unexpectedly I Sat on the Throne

An unexpected fire in Prince Duan's Mansion broke out the struggle between the princes. The court was full of doubts about the prince, but the ninth prince, who was a compatriot from the same mother as the prince, gave a surprising answer. Was this fire caused by the crown prince, or was it directed and staged by King Duan himself? Who is the winner in the battle for the throne? Will you still obey the court's arrangements when you have military power?