I guess it mostly because of the artstyle that so rough, atleast compared with average manga drawn nowdays. For me is just perfectly fine and i can quite undertand the story because im grown with this kind of old shojo manga style, and im thrilled with the story rn.
I can summary this current arc for you, basically is:
-Iana charged with 300 false crimes (now 299 crimes) accusation
-She given 1 month to rebuke the claim, but on the way Konoha was kidnapped in the other side of map iirc
-Leaving Iana to choose between herself (rebuke the false crimes on her) or saving Konoha
-She choose saving Konoha
-Now we are here on the way to save Konoha with some other problem happening (ofc) like encountering strange monster, meet some member of schwarz knight, Iana being poisoned and being eaten by the monster alongside Ginoford.