Unparalleled Favor

She is everyone's apple of their eye, she is the Little Princess of the circle, she is the young lady who has the city beneath her feet, she is the treasure whom he loves to the bone.
Reborn into a top family, only a month old and raised by a boy with the looks of an angel and the heart of a devil?
Fine, considering you've given me wealth, honor, and the utmost affection, I might as well agree.
What? The only demand for me is four words, to be lawless and unbridled?
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As aloof as he is
Your favorite?
Without hesitation, "Baby."
Aside from people?
Without thinking, "Taking care of Baby."
Any objects?
Instantly, "What Baby likes."
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As adorable as he is
The little one has a delicate appearance and an innocent temperament, carefully flipping through a dictionary-thick book on anatomy.
"Reborn?"
"Reborn?"
"Transmigrated?"
"Hmm?"
"Never mind. Want some milk?"
"Mommy, I'm already grown up."
Well, indeed, no longer a one- or two-year-old child. Already three years old.
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[One-on-one mutual nurturing, both strong and pure. The main plot is overly sweet and doting, with no melodrama or complications. A quality new work assurance, seeking collection and support.]
PS: This novel is a modern fantasy, purely a work of fiction. Please do not compare it to real life!
Also, subjective and misleading comments or malicious messages are refused. To maintain a good mood for writing, they will be directly deleted and blocked.