THAT BASTARD DUKE I SWEAR IF THE AUTHOR DOESNT SHOW THAT HE WAS WRONG I WILLヾ(❀╹◡╹)ノ╧╧
I'm pretty sure he's constantly shown his mistake every time he sleeps. It's just that he doesn't know the OG timeline was real and/or he has a hard time remembering his nightmares.
THAT BASTARD DUKE I SWEAR IF THE AUTHOR DOESNT SHOW THAT HE WAS WRONG I WILLヾ(❀╹◡╹)ノ╧╧