Hermione POV
Once I came back to my body in the past, I made sure to give back the body that could handle the powers I have enhancing it.
I'm in the summer before my fourth year so weeks before the World Cup so I found all the Holcruxes including telling Dumbledore of them to destroy them completely including the one in Harry as he won't be put in any danger from Voldemort.
I found Nagini and destroy the Holcrux in her there by cleansing her as she stayed with me as a thanks as she changed into her human form.
Once I was done, there are no more Holcruxes so Voldermort is vulnerable even if he came back.
But now I decided to not go to the World Cup as I saw the future to know Harry will be fine.
Then I began taking my inheritances as I obtained my vaults, heir rings, and properties as I own each house of Hogwarts as 100% the entire school is mine as the ministry cannot do nothing without my permission, since I'm the heir to peverell being the Lord House over Potter but also Gaunt I own there properties including Ilvermorny School of Witchcraft and Wizardry.
Ilvermorny was made aware as my status as I owned the school from being from the founder side but I told them that I would make no changes.
I returned to Hogwarts as the other schools arrived as I entered the great hall as the ceiling was acting up as I blasted upward dispersing it as everyone turned to me.
"Sorry I'm late Headmaster, I assume you got my letter on why I was late?" (Hermione)
"Yes Mrs. Granger, I received it, so everything went well I suppose?" (Dumbledore)
"Of course, everything is fine." (Hermione)
I went to sit with my house table as I saw Fleur as we are destined to be together cause she couldn't take her eyes off me as I winked at her as she blushed.
Sitting everyone looked at me.
"Hermione, where were you?" (Harry)
"Dumbledore asked me to look into something for him, it took a bit of time, nothing major as he wanted to confirm something dealing with one of the orders he placed for the school." (Hermione)