Fury
Ryu was absolutely furious.
Even if he could understand Sarriel's perspective, he refused to accept it.
It sounded logical. And, if he was honest with himself, it was logical. It only made sense to lower your head in the face of the strong, to rein in your arrogance when you had yet to accomplish as much as the person across from you, to humble yourself before insurmountable odds.
He understood it all, he had always understood it.
He understood that truth as a child in his second life facing the monstrous behemoth of the Tor Clan. He understood it when he was nearly killed by Fidroha during his first encounter with the Martial Apostles. He understood it when he met City Lord Loom and he was almost forced to kneel before thousands of people.