[it's okay Spain, Kaoru may not be emotionally apt enough to realize what an awkward situation Spain is in now, but he can at least appreciate the apology for what it is.

and his appreciation really is genuine despite the fact that it's offset by a rueful smile, unlike a majority of the sentiment he had shared while he was alive.]

By the end of that, no one could have done more than what you did. It was not a salvageable trial as yours had been.