After the war, Harry, who became an excellent Auror, accidentally touched the pendulum as a time and space converter while tracking a dark wizard, and accidentally came to the wizarding world a hundred years ago. Harry, whose body had shrunk due to traveling through time and space, had to find an orphanage to settle down in order to make a living, and then searched for a way back in Diagon Alley and Knockturn Alley. However, when Harry was "eleven", an owl messenger from Hogwarts threw a letter at his window, disrupting all Harry's plans...
The cp is Albus Dumbledore × Harry Potter, the soul exchange joke, and the core is often changed.
Parallel time and space setting. There is a physical age difference of three years. Harry was already twenty-four years old before wearing it. I can't tell whether he is older or younger. The ending is he (if I am not lazy).
Warning: Forward mine clearance warning.
Both AD and HP are OOC to varying degrees, and because the author's fifty-meter filter is very Jack-Su, GG is a passer-by who is affected by butterflies. Contains a lot of private settings, all for the sake of showing off, mindless sweet text, logic is dead.
The author is a huge fan of Harry. If he feels that Harry is overly capable in the article and is suspicious of Su, then that is a golden finger from the author.