wait what i’m a little confused
luca has also probably been reincarnated and read the novel just like lady judith (the aunt) did. lady judith was reincarnated and changed the way she behaved from the original novel, therefore luca who read the novel knows that she must be reincarnated too because she acts differently from the novel. that is why luca was skeptical of her at first
Not really read the novel, only Judith did coz she's from another world. Luca just reincarnated because he wished so.
No wonder Luca was a bit skeptical when his "Aunt" didn't act like an abuser when it's the two of them before he got sick and allowed Judith to nurse him back to health when "She" changed. Since Luca was a regressor. He would know Judith's real attitude, right?