Ultimate Antihero - Volume 1, Epilogue

Nagasawa crossed to Naruto Universe and was bound to Konohagakure.

If Konoha is severely damaged and destroyed, Nagasawa’s lifespan will be reduced.

He panicked at the thought of the upcoming Nine-Tailed Demon Fox’s attack , and the thought of Konoha getting destroyed left him in despair.

Fortunately, while bound to Konoha, he can obtain templates of powerful characters.

At the beginning, He got the Whitebeard template! Since it’s the Whitebeard from the Summit War of Marineford, he can use Tremor-Tremor Fruit’s ability and Haki.

Facing the Tailed Beast Ball, which terrorized Konoha Shinobi, Nagasawa leaped and shattered the Tailed Beast Ball with one punch!

- Description from Novelupdates

After being defeated and captured, the dragon-slaying hero Leon became a captive of the Silver Dragon Empress.With a resolve for certain death, Leon unexpectedly turned the tables and successfully imp**gnated the empress on his verge of dying.He thought that this would be enough to let the empress live with shame for the rest of her life and he also fulfilled his duty as a dragon slayer.However, two years later, when Leon opened his eyes, he found a little dragon girl with a tail lying beside him……

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

The young lord of a small and weak country saves a dragon beside the sea one day.