Naruto, be my son

After the war ended, "Edward Newgate", once known as one of the Four Emperors of the New World and the strongest man in the world, thought he would be laid to rest at the Navy Headquarters today.
Until he opened his eyes and found that he had come to a place called "Ninja World" and met a child named "Naruto".
"Gu la la la! Kid, do you have parents?"
Looking at the giant white beard, the five-year-old little Naruto trembled: "No... no, my name is Uzumaki Naruto, I... I am an orphan."
"Naruto, be my son!"
"Eh?????"
…
This book is also known as "Now, Let the Ninja World Welcome the New Whitebeard Pirates", "Orphans of the Ninja World, Be My Son", and "Ninja Father"