Sirius uses the remaking of Hogwarts as a sign by mother magic that we as a society need to reform. He points out that the new castle is a mixture of the good points of different architecture and that they as a magical community needed to implement that maintaining tolerance towards non-purebloods.
Lots of bias legislation reversed, Dumbledore tries to use Hogwarts as positive publicity but gets slammed down by the alliance since he was also transported out with the respective students.
Lots of politics in the wizenagemot. Sirius gets lots of positive publicity, slowly falls in love with Amelia Bones. Amelia bones in the list of people who knew Harold James Potter was back in the wizarding world(but not of benjamin sterling). Sirius gets back bike from Hagrid, repairs with the help of harry. Harry introduces new bikes and suggests a custom bike made together with Sirius and Harry for Hagrid, for being such a pure person and accepting Sirius innocence right after the trial.
Volume 2 Hogwarts
Replacing the Elf at the lighthouse and excellent acting by Harold to keep acting like original Harry with Hagrid, get 'introduced to Sirius' during shopping, get Brown owl gift by Hagrid name, Artemis.
Reintroduction to original characters that have changed due to the primary school, a truly Slytherin Malfoy who acts like a jerk for appearances but is a good guy inside. A Ron Weasley who was not too lazy and tried to keep the scholarship, but still went fanboy over quidditch, Hermione granger who learnt and follows wizarding customs and read the book of the introduction of the magical world to First generations magicals by Benjamin Sterling. Beautiful Hermione due to magical shampoo and fixed teeth found insecurities due to passive legillimency by Harold. Susan Bones who is more like Amelia but is a lot smarter due to Harold. Neville who is more like a brother to Harold. A healer aiming Hannah. Similar sorting to the story, but with some changes as Dumbledore cannot influence sorting anymore and sorting hat had been sorting without consideration of blood status and did the work that it was supposed to.
Harry helps friends with training teaches Hermione Occulumency, Hermione reveals heir of Dagworth-granger extraordinary society of potioneers. He offers lady training. Slowly getting close to Hermione. Jealous Susan, but Harold consoles. Quirrel did not break into Gringotts because he saw that the stone was removed. Wards reject and exorcise Quirrel, Quirrel dies Voldemort escapes. Hermione slowly integrates into friend circle and gets accepted by everyone. Slowly her insecurities are cured.
year 1, and 2 are exploring new Hogwarts and making a new Marauders map together with the twins because the old map shows the old layout of the castle, exploring the new secrets of the castle and trips and tricks. Harold does a lot of publicity to make the image of Harry Potter in common peoples mind closer to reality.
Year 3 worm tail escapes, similar to the original story except this time worm tail has come to kill him. Stopped, but escaped.
Year 4 similar to the book, except friendship of the contestants by second task becoming good friends. Harold sits down with current Love interests (Hermione, Susan, Ginny, Daphne) and decides on a Harem since he has to maintain and operate his Main bloodlines. Hermione for Potter, Ginny for Gryffindor, Susan for Peverell, Daphne for Slytherin. As for Evans he made it Matriarchial and decided that he would name one of his future daughters as an Heir.
The killing of resurrected Voldemort at the graveyard at one swoop capturing all the summoned death eaters.
Continuing through Hogwarts, Post Hogwarts, reform for university-level studies in magic, reform Hogwarts courses.
The magical world discovered by the non-magical world, Magical world ready for war. Holds all countries hostage by capturing all nuclear warheads across the world. Makes NoMags Clear the African Continent. All Non-magicals in the African continent are Shifted throughout the world. All Magical governments unite to form a Magical Federation, Federation demands that all magical Children found in any country are the population of the new magical federation. Africa is populated purely by magicals. New Governmental structure, maintains status quo with the rest of the world, while slowly repairing the African continent and making it a magical animal sanctuary. Repairing forests, stopping desert expansion, etc.