There is no reason for this stoey to be an isekai because the twins' previous lives make the story so much worse. They act so childish all the time and I would be fine if their mental age matched their physical age, but thats not the case. Sure they have trauma from abuse and such, but that trauma is used only in certain situations for plot purposes and aren't present throughout the whole story. Also, the Dad has literally no excuse for being so fucking stupid. This dude is smelling the wind after he decided to send his kids back to the home they were abused in without even talking to them aboit the decision. If he can't even communicate with his kids, how the hell am I supposed to believe he's an emporer.
The Twin Siblings’ New Life