Apex World.

Deep in America is Apex Legion capital which is producing gallons of Red Mist into the sea and air.

And within the capital is the throne room where Jigoku is currently sitting on the throne.

Then out of nowhere is a human turned kaiju called Yara.

Yara: "Lord Jigoku. I came here to report you that deep in our ocean is a rift that connects itself to the other world. However currently it small and will take time for us to polluted their world of Red Mist" she said.

Jigoku: "Time is on our side and this time Union won't know what hit them. For now send in some of our foot soldiers: The Conijus to place a Red Mist bomb in the center of Paris" he said which Yara nod then leave.

Unionverse, Earth 1790.

Currently Union 'heroes' are eating breakfast when their devices turn to the news.

Lisa: "Breaking news! Unknown creatures have exit the ocean near Paris and is currently carrying what look like a bomb" she said then the screens show the creatures.

Izuku: "What kind of creatures are they" he said then everyone watch as Paris heroes arrived.

Only for the heroes to be slaughter by the creatures weapons shocking everyone at Union how easy the creatures slaughter heroes.

Ochako: "Those creatures are heartless!" She said which many agree with her.

Everyone watch as the creatures arrived at the center of Paris then place the bomb which immediately blow up causing the screen to went dead.

Paris.

Many people watch as Paris is cover in Red Mist that soon kill thousands of people and heroes while the creatures and animals there remain alive.