MTL - The Police Called Me For The Filing, Revealing Me, A Master - ~ Recommend an extraordinary novel of the same type

I had transmigrated into my favorite game, as an extra who died before the story even began.In a world where Sigils dictate power, I found myself in the body of a boy who had already died on the battlefield.Yet, as I drew breath in his place, his Sigil changed. A power never meant for him, never meant for me.Kidnapped by a shadow organization that didn't exist in the game, I spent three years in the dark, forced to learn under a so-called teacher.I move forward, not as the extra I was meant to be, but as one who chooses their own path. A path to supremacy.Yet the deeper I walk, the more I realize… this world holds secrets that game had never shown.-----------------Additional tags:[Sword Companion], [Hidden Identity], [Artifact Power], [Slow Reveal], [Secret Society], [Survival]

It all started when the protagonist downloaded a game called “The Fool (Beta Version)”. Since then, his life has changed.

A simple text adventure game with no graphics, no music, only lines of text and countless options, but every option in the game will affect the player’s fate, because on the opposite side of the game is a real unknown world!

Players cannot enter the different world, nor can they see the scene of the different world. They can only experience what the game characters see and hear every step of the way in the different world through the form of text.

With the progress of the game, not only the rewards in the game can be realized in reality, but also various abnormal creatures in the game began to appear in reality.

Until one day, the game will be tested globally.

An era in which all people explore and hunt treasures in different worlds through “text adventures” is quietly unfolding!

- Description from novelbuddy

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.