Ah, a knight in shining armor, so to speak, [he says, callous amusement seeping into his tone. He caught that look of fear. That hint of uncertainty. Should he hold it over her head now, or carry it out later? Would it serve him to let her know that she's not truly invulnerable? There is no way that she knew he was coming, after all. Stealth is one of his talents, at least when he sets his mind to it.]

I'll look for your favor later. [He decides not to, if only because there's nothing he can gain from her. Akechi's leverage may prove useful later, but telling the world that she can be afraid of an unfamiliar weapon will only make him seem petty.] That is what a knight is meant to receive, isn't it? I once read a great deal of stories like that.