Naruto: Systematic Shinobi - Chapter 213: Sky High Slug - 7

In a morgue filled with the bodies of Uchiha clan members, he opened his eyes...A mysterious voice echoed in his ears...With a bewildered expression, he muttered, “Save the Shinobi world? What does that have to do with me, a mere Uchiha survivor?”

Hell Ghost Wang Wannian is born again, smiling and proud!
What?
Are you a soldier, will the tank drift?
You are a master, can you give birth to dragons and tigers?
You are a superman, can you call the wind thunder?
Excuse me, I am not targeting anyone, everyone in my eyes, it is rubbish!

- Description from Uukanshu (translated)

Who says I am a worthless student, the pretty Alliance Leader is within my grasp.

Who says I am a single man, a harem of huge numbers waits upon me.

Watch how the strongest senior high school student in history, Li Fan, turns over the city upside down, becoming a hero unparalleled under the heavens!

My wife is the martial alliance leader, and I am the strongest senior high school student, Li Fan! I’m waiting for all of you to drop in to discuss the rules of Jianghu!

- Description from Novelupdates

Once upon a time, a boy was referred to as a “War Hero.”

In another world called Aletia, the boy who had saved the Lost Kingdom, conquered their neighbouring countries, and led to the rise of a grand empire decided to throw everything away, returning to the modern era at the cost of his memories.

As three years passed, the boy who was happily enjoying his daily life was once again called back to the other world.

However, what awaited him was the Aletia of 1000 years in the future.

As his past glories became a “myth,” the legend of the youth referred to as the, “Twin Black Hero King,” begins.