Unstoppable Martial Arts: Starting with brother's wife and young sister - Chapter 4 Enough

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.

In the 21st century, she was the talented leader of the hidden family clan, once she crossed over, she became the number one waste?

You have all read about Self Inserts and their adventures. Some are good, some are bad. All of them are entertaining. What would happen if the person involved had a choice about who they could become? What would they do? Be good? Be Bad? Have more fun than anyone ever deserves?Join me as we explore a brand new Gamer-like existence with The Protagonist System!(all characters and likenesses are copyright their respective owners)Warning: I will not apologize that this story is completely wish fulfillment. It's a story and I'm going to have fun with it.

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.