
.... Is my eyes deceiving that maybe the one did it is either Zeke or The Grand Duke himself??? Idk..

nah the guy who turned back the time has blue eyes but her father and brother both have red eyes. so its most probably the son of Viscountess Shore. she has blonde hair and blue eyes, and even mentioned how their son is aleays holed up in the mage tower, so that means their son is someone who can use magic. (see ch15)

Is the father that dumb?? He is with her the whole time (like maybe same house) and he believed on a stranger... Like hello??? Is investigation not a thing??... Dumbest grand duke right here

I'm agreed with yours.
But in my assumtion, maybe his investigation got some disturbance like corset's uncle made it just like what Keira told to the duke, "that she is her mother fruit of affair?", they made the evident allegedly to her mother just like that?,
And, i don't know. If the duke gotten drugged from Corset just like in the Empress that drugged from Duke Frez, so the empress got easily manipulated??
Or the Duke just like how scum Sovieshtu is look like?
Or maybe the Duke just blind?? Coz his memorise and love still in the first Duchess Ruwena? And he never liked her mother maybe?
You knew? When someone still love her/his ex, they will more easily got irritated and will see what the current spouse is not good enough just like the ex? And they will try to make a difference between them?
I hope Arth could find a way to kick out Johannes out of the kingdom... He is the absolute trash and a moron one too..
Like any guy next in line for succession could be a better ruler... Or better yet.. Plan for this demise or change the law to Rebecca in charge