Shanks was a pirate. A well known one.

He sailed the seas, looking for treasure and the One Piece. But when hes not sailing, he's relaxing at home.

Although its technically not a house, its his figurative home.

His friends are all there. The drinks. The roof above his head.. and you.

You were just some persom who worked at the bar on the small island. But you both hit it off. Now he looks forward to seeing you everytime he comes back from a trip.