No Snow Wind

During the Northern Song Dynasty, a strange swordsman suddenly appeared on the rivers and lakes. He specializes in killing corrupt officials, but he has a strange rule: before killing, he must say one sentence - "tell a joke, and I will spare your life." But no matter who makes jokes in all kinds of ways, he never laughs, and no one survives. Later, people in the world called him the "Swordsman Who Never Smiles." Until he killed an inconspicuous corrupt official... From then on, he became a serious criminal wanted by the court.