[Oh boy! At this last bit, Hizamaru perks up, standing formal with his hand on his sword.] Yes! [If he doesn't sound certain about anything else except for the love for his brother, he sounds 100% certain of this.]

I was made to protect my master and my friends in any battle. I'll try my best so I don't fail. My master and elder brother's honor depends on it. Whatever decides to come, I'll be ready.

I won't let them or you down.