"I would like to transform into a sword and cut off thorns all the way for you; I would like to stand in front of you and block thousands of troops for you; I would like to be your shadow and give you a crown."
The story of a sickly prince who accidentally ascended to the throne with his nominal master.
Purpose: Kill one person in ten steps and leave no trace for a thousand miles. When the matter is done, brush off your clothes and go away, hiding your body and name.