[He hesitates. He's not... sure if he can promise that.]

... I can try. ... I can try.

[He knows he means Kazuya. The degree to which he can take care of him varies depending on the timeline. In his own... he's not sure he can. He doesn't want to hurt Kazuya, but... he does need to work around him.]

But don't make me give you a promise like you're a man about to die. You'll have time enough to be around Kazuya.