Itoshi rin, he has a girlfriend who he loves very much. But he had an accident and died on the spot... And that was 3 years ago. Now his lover lives alone, ah no.. His lover still can't let go of himself, and still wants to stay with Rin.. His lover still thinks Rin is alive and still with her, even though she's not.. Rin is trapped in his own lover's delusions, because his lover still doesn't can let him go.. But Rin still has to go, has to.