Heungbu is a popular Korean folktale that tells the story of two brothers, Heungbu and Nolbu. Heungbu is kind-hearted and poor, while Nolbu is wealthy and greedy. The tale highlights themes of generosity, kindness, and the consequences of selfishness. In the story, Heungbu helps a wounded swallow, which later rewards him with fortune. In contrast, Nolbu tries to exploit the situation for his gain but faces misfortune instead. This folktale is often used to teach moral lessons about the importance of compassion and the rewards of good deeds.