[TsubakiNanami]

I read Volumes 1-4 before reading it online
and then I felt that maybe Izark is this sky demon they talk about
and the key to unseal/ stop him was Noriko
with those small hits that the story gave us

1)How the word "monster" affect Izark so much because of his mother
2)fast healing ability and inhuman power and speed
3)the scales in his skin
4)how the scales are getting worse when he is around Noriko
5) growing fangs and changing eyes

but what did you know? it actually was as i thought

while I was reading Volume 5 I discovered i was right :x

Didn't anyone feel the same way before reaching Volume 5?

i just noticed that Noriko's hair grows as the volumes goes