[Eichi smiles, and it's got a new touch of fondness to it that he's never let show before. That he's not sure he ever allowed himself to feel, before now. But he's more fond of Wataru each day, and this... this sounds like everything he wants.]

You're right. As you said, we're fighting fate, and we're... eternal, aren't we? I completely agree with that sort of theme, and it's not too difficult of a transition, either. I believe it would be received well.

[He pulls a hand back to tap at his own chin.]

Hmm... We'll need a new name, then. How about... Aeternus? [He expects Wataru to know what that means.] And then, there's the matter of that theme... Shall one of us represent each? If that's the case, as I imagine is most effective, would you prefer to be yin or yang, Wataru?

For a decision like that... I'd like to leave it entirely to you.