[ He doesn't feel like he wants to waste time explaining, because he's the kind to just do something when he feels like he wants to, but from Cain's perspective he can kind of understand needing more confidence before throwing someone he knows directly into the heart of the battlefield. It's unnecessary, because Rohan has enough confidence in himself for the both of them, but that's how a heroic character in a manga would also feel, so Rohan can understand. ]

With Heaven's Door, I'm able to open sentient beings up, much like a book. Once the effect is in place, I can read the pages or write my commands.

[ There's no way he can make this sound like it makes sense. Cain will just have to trust him on this. ]