[ Naturally violent. Yes, maybe Souji really does speak his language. ]

Is there a more efficient trait in a protector?

[ He playfully boxes Souji around the muzzle with his fingers, exchanging blow for blow. He's just asking to get bitten, honestly. ]

Animals don't understand embarrassment or malice. There's no overdoing it for a dog. It might be nice if people could be that earnest.