Comment by Closure on The Knight of Embers - chapter 10

I feel like Najin is VERY suspicious. And no, I'm not talking about Nagyun. It's just that, him getting strong in just three days doesn't mesh well with me. Like, think about it. Do you think it matches with what we have seen in this manga? I swear they're trying to mess with us. He didn't make a deal with the devil or something, right?