[He did expect her to ask sooner or later, so his answer comes without hesitation:]
Well, it would only be fair to tell you, since you trusted me with what you are. [And still he briefly looks away, as if debating it with himself after all, although he looks back at Yuuki after a second.]
I don't know if my kind exists in your world, or if stories of us do... and if they resemble my reality in any way. [Please don't judge him based on any of that?]