Makoto, a 30-year-old Japanese businessman, wakes up and finds himself on a beach he's never seen. As he struggles to get out of the strange place, he meets peculiar characters who help him understand that he is, actually, already dead like them. His father Kiyoshi is deeply saddened by his loss, he and his son have had a fallout and now all he has is regret. The distance and pain makes them forgive their guilts and find a way to make peace with their pasts, giving them a final chance to meet each other even in different realities.