That Hat

A worn-out cap was passed down from a beggar to a child, and has since been passed down among generations of ordinary people. Every master is an unknown person, but he stands up to protect the weak in troubled times, and then walks away without leaving his name. When someone asked them why they did this righteous deed, they just shook their heads and said "I don't know." But that cap remembers everything - it remembers everyone who has worn it, and how they used their flesh and blood to block the knives of the world.