Sehai-Kun!
"Sehai-Kun, Sehai-Kun!"
"What's the matter Ezio-Kun?"
"I need a way to stop the Templars from enslaving mankind!"
"You're so hopeless Ezio-Kun" a knife was dropped into the ground "world takeover prevention kit!"
"Eh?"
"Kill all humans not involved and they'll be no-one for the Templars to dominate."