[Even if Ichiru doesn't know, Zero feels at ease to know that his twin is, indeed, not about to die anymore. Rather from it, even if he may be weak for a bit after. Anything is better than the alternative. For as well as Zero is able to steel himself, he wouldn't be able to handle Ichiru dying in his arms again.
Yet, his emotions still get the better of him to a small degree. One hand moving to cover Ichiru's. He's silent once more, chest suddenly tight.]
You found me.
[his hand tenses, and for the first time today he's hating for how much meeting his brother again is affecting him. He died over a year ago. Zero was at peace; he knew Ichiru has since then been a very real part of him. Yet still. . .]
You found me, and completed what you were aiming for. I did what you wanted.