possible spoilers..?
I just read a comment saying he isn’t really human but kind of like a fire element thing? Wtf? I’m excited to see this play out.
+I actually love Hyunjae so much.. I’m kicking my feet smiling while reading scenes with him. I can’t wait for him to get those memories of his abilities and for his relationship with big bro to blossom
They're human literally. The usage of "inhuman" is not literal, more to show how far removed from normal humans they are(emotions, the way they think etc.). All S classes are humans that have insane amounts of power, their mentality can't keep up with the power so they all come out unhinged, the brain can't handle it unscathed. You can think of it in a severe mental ilness way lol. Also the brother isn't the element, he harnesses it though his contracted fire elemental Irin(the lil lizard)
It’s been mentioned more than once that little brother is inhuman and it was just mentioned again in this recent chapter. It was mentioned a bunch of chapters ago and I’m starting to think it isn’t just “he’s so op he’s become like a monster” there might be like backstory reasons?