okay so mc's lack of words except 'eh, uh, no, y-yes? really?' baffled me. you should really umm, being more adult-like? you can try be more calculating in trying to be close to the duke or if you're that traumatized, be more like anguished and seek help actively? if you want to try this direction, at least you can just write true children not reincarnator. this is like twin siblings all over again, with pretty sparkling arts. I love the translations though!
edit: i wanna add the prince this chap is real champ because he asked my question all along