[He doesn't know how to handle this and the small noise that leaves him is mostly involuntary, shaky, wanting to believe him, trusting those words - and yet self-doubt gnawing inside him at the same time.]
Shiro --
[It's only sheer stubbornness that lets him shove the conflict down from pouring all out of him, to talk with determination instead, nodding furiously.] I'll do it. Work hard and get there, I- I know I can.
[He doesn't know, but damn it, he wants to. He'll be worth everything you've done for him one day. Even if it seems like a dream out of his hands, he'll barrel toward it if he has to. And just as you told him to, he--] I won't give up.