The Moon Sets and Listens to the Sound of the Knife

A frail young man was raised by homeless people. Once he traveled to the rivers and lakes to find a teacher, he vowed to punish rape, eradicate evil, and protect the weak. But he was shocked to learn his true identity and the bloody feud that caused the family to be wiped out. He sharpened his sword through blood and went through hardships, and finally became the best swordsman in the world.