The Uncorker of Ocean Bottles

The story follows a man who lives alone on a hill and works as the Uncorker of Ocean Bottles, whose job is to open bottles found at sea and deliver the messages inside to their intended recipients. He has spent his life delivering others' messages while secretly hoping that one day a message would be addressed to him. One day, he opens a bottle containing a party invitation with no name attached, which leads him on a journey to discover who sent it.