The Number One Troll in Dayin: Your Majesty, Who Will Be Killed Next?

He traveled through time and became the most useless prince of an imaginary dynasty. He originally wanted to lie down and wait for death. Unexpectedly, when the enemy's army pressed on the border, the civil and military officials of the Manchu Dynasty recommended me, a famous idiot, to go to the front line to sacrifice the flag. In the court hall, I accepted the imperial edict with a smile, and in the blink of an eye I used my modern chemistry knowledge to prepare black gunpowder. That night a mushroom cloud rose from the enemy camp. I took the enemy prince's head and threw it into the Golden Palace: "Your Majesty, who should be killed next?" The person on the dragon chair was so frightened that he was shaking like chaff, but I caught a glimpse of the Queen Mother behind the curtain with scorching eyes...