The knight comment makes no sense. Haru is a thief, but he never steals anything.

Well, risking your life to save others is a very selfless act, not something you'd do for someone you don't give a shit about. I'm willing to bet Ranta is just a socially awkward softie, but we'll see.

You gotta admit that most of what comes out of Ranta's mouth is nonsense, so I can't blame anyone for not listening to him.