My Goal Is to Become the Daughter of One of the Four Emperors [One Piece]

You transmigrate, and to return home, you have to become the daughter of one of the Four Emperors.

You're lucky enough to start out as Kaido's daughter.

Unfortunately, you're too weak to do anything, and can't even leave the house.

*

A long story, with lots of details still undecided. In short, you become the daughter of the Four Emperors.

Theme: Becoming a happy person