Hats and Unegami

Lanari, a cat-human, is going from Island to Island, trying to live as she carries her box with her. As she goes from island to island, she helps those that need help, such as those being attacked by pirates or in poverty. On the most recent Island, a pirate invasion occurred and she couldn't do anything, but a silhouette, "M", saved her and wants her to repay him.