Naruto System in One Piece - Chapter 48: Hina and Ain

In the vast Marvel universe, where superpower was still slowly growing in its infancy, several peerless superheroes tried to find their path in The Marvel Universe. A young adult named Ron from modern Earth unwittingly stumbles into such a world and begins his journey with an unknown power. This is a magnificent yet unknown true marvel world! This is the story of a normal young adult and his adventures!

- Description from Novelupdates

In the near future, a space channel connecting the other world suddenly appeared on Blue Star, and a large number of other world monsters poured into the homeland where human beings depended for survival.

Human civilization has shrunk sharply and had to hide in the base city to survive.

Only warriors can lead human beings to open up living space and regain lost land.

However, martial arts requires talent, and not everyone can become a martial artist.

People with outstanding martial arts talent can not only advance quickly and break through limits, but also optimize their exercises and benefit future generations, and are admired by all mankind.

By chance, Lu Heng discovered that his martial arts talent could continue to evolve…

- Description from novelbuddy

Im-sol is an ordinary student who is about to graduate from college.

Hiding the fact that she is a fan of Ryu Seon-jae, the fifth member of the Idol group ‘Potato Pancakes’,

Right now, she is doing cosplay in public.

-BREAKING NEWS- Ryu Seon-jae, a member of the Idol group, ‘Potato Pancakes’, is dead!

Then one day, because of an accident, Ryu Seon-jae died and Im-Sol, who was in sorrow, accidentally picked up a pocket watch and made a time leap to the past, six years ago.….

Gray pants, white shirt, beige knit vest.

No matter how much she blinked and squinted at him, he was standing alive, right before her.

“Seon-jae, that’s Seon-jae. Ah, it’s him. He’s real.”

Ryu Seon-jae, a high school student who she only saw in the picture, was right in front of her eyes.

This may be an opportunity.

An opportunity to prevent Ryu Seon-jae from joining Potato Pancakes and becoming its 5th ‘unlucky’ member.

An opportunity to save Ryu Seon-jae, who died at the age of 23 with no luck because he took a wrong cold medicine.

Eighteen to live again, with only one goal.

It is to save Ryu Seon-jae!

To save the best in the past,

Im-sol’s struggling ordeal, ‘The Best of Tomorrow.’

Gu Lu was a Paleontologist. He was very glad to reborn as a small dinosaur.

But the terrible thing was that he turned into a Triceratops cub inside a nest of Tyrannosaurus Rex.

Tyrannosaurus Rex was the strongest carnivore known in the history of the Earth, also called the “Imperial Species”.

Triceratops was an herbivorous dinosaur and the staple food of Tyrannosaurus Rex.

But fortunately, he had a very doting Tyrannosaurus Rex “Dad” called Mungo, who named him Gulu.

Gulu thought that he could only be a salted fish Triceratops holding Tyrannosaurus Rex’s golden thigh in his life.

Unexpectedly, he helped the Triceratopses escape a big glacier, Pterosaurs flying away from the volcanic sea, and the Sea King Gliodon fleeing from the super storm…

He became the “King of Dinosaurs” when he was not careful and was honored as “King Gulu” by the dinosaurs.

Gulu: Dad, this name you gave me is not domineering or cool at all!

Mungo: Gulu, lovely.

- Description from Novelupdates