demi-duty
Naminé's words ring in his ears, You were not supposed to exist, Roxas...you won't disappear...you hold half of what Sora is...you'll be made whole...made whole...made whole...
As she fades, he shouts, but it is too late. He is left alone to himself. But he's not really himself. He's only half of a person, not his own being at all. He's not supposed to exist.
Roxas is just half of Sora...half of a kid, a boy, a friend. Half of a hero. How could he have ever saved Naminé if he's only half a hero? He summons the Keyblade...oh, how he wishes he had never heard of the stupid thing...summons the Keyblade and stares at it, as he...Sora...Roxas...has done so many times.
His head aches. Who is he? Roxas...or Sora? Or neither one? He's not who he thought he was: a kid who lived in Twilight Town with his best friends, just an ordinary kid, pretty good at skateboarding and Struggling, but still average. Now not one, but two new visions of himself are here. One, the quiet, dangerous member of the Organization, the Key to Destiny, Axel's best friend. He shivers at the thought. The other, a happy-go-lucky kid with the key; the hero. Friends are some kids named Riku and Kairi, plus a duck and a dog...Donald and Goofy...
Sora, he knows from the dreams, saved Kairi. But Roxas failed to save Naminé, even though he's supposedly Sora. Half of Sora. A demi-hero. Not good enough to be a person of his own. Just a shadow of what Sora is, just an echo. And now...who knows what has happened to Naminé?
Sora could have saved her. The Organization Roxas could have saved her, if he had cared. And now Roxas must face the truth of who he is; he only thought he had a heart. He is without one. No matter what the friendship he felt for his supposed friends (who don't even know him), no matter what fear he felt (useless, because what does it matter if he dies?), no matter what, it was all an illusion. He can't feel, so it's no use if he cries, because he can't feel sadness. So what is this huge gaping hole that hurts?
An echo. It's just an echo. It's the echo of what Sora felt. The sadness that he's endured. But Roxas wants to be himself, not Sora. But...he traces his name in the air. Roxas. Sora. An anagram, he remembers with a hint of (the illusion of) sadness. Sora with an X. Because he's Sora. Sora, yet not.
How can he be the same person as that hero kid? How can he be the same person as the other Roxas, the seemingly unfeeling one? His world has been shattered, and Roxas still isn't sure what is an illusion and what isn't.
You'll be made whole...
No matter what befalls him, he decides with an echo of Sora's heroics, he has to go on. He'll try to save Naminé. He'll maybe find out more, even though it pains him. Because he feels, or thinks he feels, his sense - Sora's sense - of duty. He has to try, even if he does disappear.
Roxas grins with a mixture of bravado, grimness, and exhiliration. Even if he does disappear, he'll try to take down that weird guy who stole Naminé. Even if he's only half of Sora, he doesn't need a whole sense of duty to tell him what he has to do.