A/N: I do not own or profit from any of what Kazue Kato has created.
Shiro didn't notice anything different, at first, with the sparring sessions he still kept up with Mephisto. The demon was still far better than he was; far stronger, far swifter. He was still a tease, still pushed all the right buttons, still-
Shiro didn't notice anything different.
…and when he had realised that, he also realised that telling Mephisto about it might not be a wise thing to do.
