You know, looking closely at Brow's dialogue...
He never actually says his first-person pronoun!
(Well, maybe I just missed it...)
So that means...
It could be 'Boku' or 'Ore'!?
...That's what I realized three minutes before publishing.
By the way, I'm a 'Boku' fan!
Well, given his speech style, I went with 'Ore' (masculine/casual) this time...