I Am the 5-Year-Old Spy Who Kidnapped the Villain

Meet Aisha, the 5-year-old spy raised by the Pose Family.
“Your first mission: become the missing daughter of Duke Calypse Kreutz.”
Inside her body, deployed to bring down Duke Calypse Kreutz…
I, who died from overwork, have entered.
I can’t die like in the original story, pretending to be a fake daughter!
Day by day, striving to break free from the life of a spy, revealing the whereabouts of the real daughter, and being acknowledged as an ally in various ways.
Even choosing a foster father to avoid returning to the Pose Family.
“With my abilities, I could even become an S-class mercenary. What if you try nurturing this golden seed called me?”
As the most familiar gardener at the Kreutz Mansion!
And finally, the day when efforts bear fruit and an adoption application is received.
“Now, it’s time for a formal introduction.”
Why does the old man, who took off his usual robe, look so handsome?
Why is his room so magnificent, like that of a noble, and why are people kneeling as they come in?
“…Sir, who are you?”