I'm weak for Isekai and this list is the proof

Rating:11/10

+Not really isekai
+Child mc, Nobles
+Like she actually thinks and acts like a child , not the adult in child's body types
+I think this is the best one out there
+The arts very pretty too
+Love the Salvatore fam, like even the maids, perfec

Leslie’s life was always used for the betterment of her sister, Eli. After a failed attempt to extract the black magic within Leslie to transfer to Eli, Leslie knocks on the door of the monster Duchess and pleads for the Duchess to adopt her?!