If this heartwarming story doesn't restore your faith in humanity, I don't know what will. 

After finding a wallet, a Busan resident picked it up and left it with the police. Named person "A" by the media, this anonymous do-gooder had found the fallen wallet lying on the street near his company. Within the wallet was a check made out for 1 billion KRW (~ $890,000 USD) as well as 2.9 million KRW (~ $2,600 USD) in cash. Rather than taking any of the contents for himself, however, the finder returned the wallet, allowing it to safely return to its owner, known as person "B", based on the information inside.

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According to person "B", he had prepared the large sum of money to pay off a construction firm. However, he lost his wallet before he could do so. "I was embarrassed about losing my wallet that had this down payment," he admitted. "Although I tried giving both person 'A' and the police a reward, they refused to accept it." 

Thanks to people like person "A", we can always know that there are good people in this world!