Bad days are like mad dogs

Introduction: The "Mad Dog Swordsman," who climbed out of a coffin, wanders the plague-ridden South with his little dog. This is during the Ming Dynasty. The swordsman has no place to stay, living on dog food given out of pity for the little dog by the gatekeeper of a wealthy family. The plague has been raging for years, and greedy soldiers, disguised as bandits, plunder everywhere. On this day, they encounter the "Mad Dog Swordsman" in front of this wealthy family's house, and a fierce battle is about to break out.