Not quite DI, but okay! This works!
[An island? A BEACH?! To Sora, who hasn't seen a beach in at least a year and by his point in canon is kinda home-sick? This is awesomesauce.]
All right! A beach! [His shoes and socks are coming off, and there goes the jacket and his shirt, and the belts--he's leaving the pants on; he doesn't care if they get wet, but the pouch/pockets are gone, and into the water he goes!]
[He probably won't notice the piece of paper that was in one of his pockets for a while; he's busy having fun and trying to forget about that last world just being a kid again. Not someone with weight of the universe on his shoulders.]
[Little does Sora know that there is something SERIOUSLY wrong with thirteen-year-old yaoi fangirls always making him have sex with some seme-fied version of Riku on a beach, and that the author of this fan-fic is trying to set poor Sora up for that.]
[Where's a toy sword and someone to spar with when you need them? Add that, and this would be perfect, in Sora's mind!]