It's just...you sound a certain way when you're upset, is all. I guess there's a strain behind your voice? I don't know how to explain it exactly.

[There was a smile in his voice, even if Yuki couldn't hear or see it.]

I told you before I'd take you up on that. So I will. I'll let you know when something's bothering me. Just don't be afraid to do the same, Yuki. Either way, I'd be glad to train with you.