[ Eyes follow the discarded bottle until it ruptures, snapping back to Suigetsu who's the source of that anger rather than the result of it. It's jarring enough to hear that Kakashi's here and -- in line with the point Suigetsu's making -- he wants to direct the conversation towards that instead, but he doesn't have a chance in the deluge of condemnations that follows. None of what Suigetsu says can be called a lie but there's the kneejerk response to color it with a generous bit of context, eyes narrowing in a rare display of emotion as he watches him.

It's tempting to activate the sharingan but he doesn't actually expect an attack. Not yet. ]

Calm down.

What the hell are you angry about? That I didn't tell you about Mangetsu? I never saw Mangetsu, or any of the Swordsmen. Before I engaged Kabuto I was still underground with Zetsu. How much news do you think reached me there? [ He pauses, taking a short breath of his own. ]

... I didn't know about your brother, Suigetsu.