Jormungand

They’re called an anti-superhuman group. But in this world, the story seems a bit different. The main force of Jormungand are monsters, not humans. Those who stand atop all monsters and know more of humanity than humans do…they use humans to destroy humanity.

This is how Jormungand was created (Chapter 319 after synchronization rate became 100%)
"“I was more important than I thought then. The state wanted to conceal my existence, but when the war situation changed due to my weaponry, the enemy nation recognized and investigated me.”"Anvil was a simple human. He loved what he made but never imagined they would be treated as such. He underestimated his own existence, and that accelerated the tragedy. Starting with the conclusion, the enemy country pursued information about him and found his family’s whereabouts. They didn’t try to kill them; rather, they wanted to bring the blacksmith to their side. So, they tried to kidnap them. There weren’t many guarding his family, and they weren’t that strong. They decided that they couldn’t stop the enemy soldiers and realized that if it were left as is, his family would be kidnapped, and the blacksmith would follow them.

-So they killed his family.

Before they could be kidnapped, Anvil’s family was killed by soldiers. Did Anvil really not know this? No. He thought he was going crazy at first, but he soon realized that he had his suspicions. He thought hard and reached the truth he didn’t want to admit. The moment he reached it, he stopped making weapons for humans. They said they would use weapons to bring peace to this world, but it was their greed that killed his family. They were lunatics who would stab other humans to expand their position in this world of monsters. As a result, even if their position narrowed as the monsters’ territory expanded, they didn’t stop their foolishness.

The blacksmith began to doubt whether humans really should survive. Even monsters were able to join forces against humanity, yet humanity couldn’t stop fighting each other even until the moment they were destroyed. If so, won’t humanity perish someday anyway? What’s more, the weapons he made were the best tools to accelerate it. Then, he’d rather, instead of going around and around like this, wouldn’t it be simpler to create a tool with the sole purpose of killing humans?

What was established was a group called Jormungand.

It was after the blacksmith Anvil disappeared from the human world.