Saitou gives a small nod at her conviction; if she is willing to then it's all that really needs to be known because he did come here with his decision set in stone for himself.

But, it still leaves the question of what exactly this 'goddess' is expecting exactly. "What, then, are we presenting exactly?" Because, as logical as it is if he were to think about it... he's not thinking anywhere down that path at the moment (because despite what he saw on the other altar and the demon's answer... well... it just doesn't come to mind ).