I really like the idea that Sanger Zonvolt is - underneath his badass exterior - a huge chuunibyou. He gives ridiculously cool names to special moves, mecha and even his various swords. And he gets away with it because no-one’s argue with a modern samurai who helped revolutionize mecha-scale warfare.
He’s basically Owain, but old and with a giant robot.
… I really wanna believe he’s Old Owain.