One Piece Fanfic Idea #3

What if Whitebeard had a daughter and that daughter have a child with Akainu who doesn't know she is the daughter of Whitebeard.

The daughter of Whitebeard died after giving birth to her child.

Akainu taking care of the child to be a marine.

The child is a Rear Admiral at the start of Canon.

The child will have a sense of avenging justice.

The child will have a Supreme Haki as to show his ideal of Justice is the True Justice.

The child idolized Garp for his strength, Sengoku for his leadership and tactical skills, and his father for his fighting prowess.

The Child(MC) is 28 years old at the start of canon. He mostly patrol at Grandline Paradise.

The MC while being son of Akainu he does not want to be like his father who is cold hearted.

The MC does not know who his mother.