Harry Doesn't Want To Be A Wizard, He Just Wants To Be A Superhero

Harry's diary:
1991/6/23 I traveled to a different world and was adopted by a couple. They were very gentle, much better than my aunt's family!
1991/7/31 I returned to the original world and received a mysterious email. Oh my god, it was a Magic school!
1991/8/8 I saved Tony Stark, the richest man in the world!
1991/9/9 I encountered a mysterious man. He seemed... very weak?
1991/10/10 I was accepted as a disciple by the Supreme Mage. Relying on the magic power in my body, I don’t need to pay the price like others!
1991/11/11I became the greatest wizard of all time!
...
Many years later, Harry Potter, the Master of Chaos, the Three Generations of Dark Lords, and the Strongest Wizard in History, faced a crazy reporter and said calmly:
"Although Thanos is very weak, one thing is right, the world needs a new order!"
This book is also known as: Harry's journey back and forth across the world, the birth of the greatest wizard, and the mysterious man feared by the Latitude Demon.