My Hollywood System - Chapter 204:

He is the ruler of the mercenary realm, an overlord that gives headaches to the leaders of any country! For the sake of his friends, he’s willing to sacrifice himself; for the sake of his family, he does not hesitate to spill blood! He is a dragon, one that soars above even the highest of heavens. He’s a power that advances triumphantly through unstable situations, stirring up both the winds and the waters.

Unlock the One-Click Training System: [Unlimited times the training speed, one realm per second!]Unlock the One-Click Skill System: [ The Skills are at Max level instantly, and you can practice 10,000 Skills at the same time! ]Unlock the One-Click Clone System: [100% of the strength of the deity, self-destruct, teleport, and fit!]

When we met for the first time in our first year of high school, he saw my contempt, but silently continued to clean;

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.