Ienzo wouldn't have blamed Riku a little tenseness, all things considered. They hadn't precisely parted on the best of terms the last time they'd met, and while he certainly wasn't going to be going for a repeat of that any time soon, it had been more than reason enough for caution. Similarly, it was all the more reason to offer politeness in kind.

He didn't speak up - there wasn't much he could think to say - but he did offer a polite nod in return.