I Stole the Child of My War-Mad Husband

He’s a warmonger, people call him ‘demon’, a nickname filled with awe and fear, and I, reincarnated as the harlequin male lead’s wife.
If there’s a problem, it’s that in the original works as right as it starts, she, together with her blood-related daughter were murdered as the ‘Wicked Previous Wife’!
My daughter that’s slated to die with me is a 5-years-old kid who’s boundlessly cute, and my husband is good-looking but scary.
I tried various things to fix my bad-personality husband. But I think for me, the one who isn’t the female lead, fixing him is impossible…
OK! First, I’m going to take my daughter and run away. Let’s think about the future after.