Deadline Birds, Sound in the Souls of Men [デッドライン　島唄よ響け、男たちの魂に]

A veteran hitman who has failed his job and returns to his hometown of Okinawa to escape from the organization's pursuit. Decades later, in Okinawa, he meets his nephew, a beautiful young man. He falls in love with the young man, but eventually the organization follows him to Okinawa and starts closing in on them...