Graubert

Graubert is the captain of the ship that travels between Mutazione and the outside world. His wife is Ailin. His rough and joking manner are offputting to many, though he does have redeeming qualities.

History
Graubert is the only member of the cast that regularly travels between Mutazione and the outside world. Despite his familiarity with the island he holds an outsider's status.

He loves Ailin but dislikes Mutazione, wanting her to move to a suburb with him. He lacks the self-awareness to understand how this would affect her (particularly as compared to how it would affect him, since he spends most of his time out to sea.)

Tung works for Graubert whenever he arrives on the island, lifting crates and unloading the boat.

By the time Kai arrives, Graubert and Dennis have a clear history of clashing, with Dennis particularly fighting back when Graubert insults Tung.