Naruto: The Outsider's Resolve - Chapter 1.3 (003):

“You are mine, and I am yours…”

The world cannot be saved by the victory of a single man. This book begins at the point where the climax should occur; the battle between a Demon Queen who is a little strange and a Hero who is a little curious.

However, not only do these two give up the battle, instead, they join hands to directly challenge the complicated social structure which dictates that humans and demons must forever be in conflict.

This is too reckless right? How can this be done? Undoubtedly, you are thinking that.

Come, please turn the page. You are about to read a story that has never been told before; the story of the Hero… and the Demon Queen.

Ning Yechen used to be the Demon Lord. He singlehandedly took over the Demon Realm and attacked the Heavenly Realm. His name preceded him throughout the Six Realms. He got tired of fighting, so he quietly went into seclusion and became a happy hermit.One night, an Empress from the Heavenly Realm fell into the Mortal Realm after someone drugged her with an aphrodisiac. She inadvertently fell into his room, and they made out. After the deed, the Empress quietly left. Just when he thought he would never see her again, she showed up in front of him ten years later, bringing a child, saying it was his daughter and demanding accountability from him! “She’s your daughter. You have to be responsible for us!” Ning Yechen was stunned!

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates

This is a world where science and magic coexist.

Some people here seek powerful magic, and some seek eternal truth.

A science tyrant who came from another world, started as a little librarian, with magic in his left hand and truth in his right, kicking the door of the new century with one kick.

Some people call him the forerunner of magic, some say he is the founder of science.

Some people describe him that way.

In the new century, Blair is a symbol of evil.

- Description from novelbuddy