
lol..... in ch.9 from page 24 there is a clue to the real "hero" where even the mc thinks "who is this"... there r more hints here and there, things he says and the face he makes which r much darker and would suit the demon king and not the lighthearted Graham.. there was another scene where the demon king kinda communicated directly (subconsciously) with Graham, but i can't seem to find it ...

They did mention that the hero and the demon king are linked. Also that because of that link the demon king could find out where the mc was through the hero. So the hero has been leaving the mc behind in her past lives in order to protect her. I think that is all it is. That he has awakened and knows all the past, but this time has decided to fight instead of hide.
Why the hell do I feel that graham is hiding something I have no idea what it is though
ヽ(`Д´)ノ