The Man Who (something?) With the Sea [s]

[Foxthyme]

This is a Chinese or Japanese setting. The man, a shipman, falls in love with a woman who has a pre-teen son (think Lord of the Flies). The boy and his friends end up killing the man who has given up the sea for the woman.

[Anna]

At a guess, The Sailor Who Fell From Grace with the Sea by Mishima.

[Foxthyme]

Yes, that's it! Thanks.