My Fiancé Keeps Trying to Raise Me

“For the alliance, you must marry Archduke Harzent of the Arkhan Empire.”
Once a knight sworn to protect the kingdom of Heyworth, Princess Annette, who became the object of scorn after an injury, takes the place of her half-sister, Bridget. And enters into a strategic marriage with the war hero, Archduke Harzent, who is said to resemble a gruesome monster.
On the day she was heading to the empire for the marriage, She is unexpectedly ambushed and turned into a young child?!
Annette is deeply concerned that the alliance with the empire might be jeopardized due to this sudden event, but…
“In reality, I am an ardent follower of the Lord Heyworth.”
“Can I become strong like the princess and protect what is precious to me?”
“That cuteness itself is a guilty pleasure!”
Annette, who is adored by young and old alike,.
“My princess does whatever she wants.” Even the archduke, Cardien, who, contrary to the vicious rumors, is a dazzlingly handsome man, is affectionate.
She even admits,”Your Highness, I’m not really a child.”
“Oh, I know. Now, shall we go play chika chika?” “……..Sheesshhh,”
For some reason,he keeps trying to raise her! What on earth is this?!!