Manabu's head tilts at the little revelation about a time before Wu and Mako were...Wu and Mako. The idea that they didn't even like each other seems weird from where he's standing, given the only time he's known them is them together, fussy or otherwise. He'd ask about it, but--

"I mean-!" His eyes wince. "It's a little much to compare that to armed combat, right? That's life or death stuff...!"