A long time ago, in a time of peace. People were just continuing their everyday lives just they usually do. However in moment that all changed when a blue hellish flame erupted in part of the city of Asgard. Out from the flame a human-like creature emerged and began to paint the streets with the blood of all those who it encountered. The chaos didn't end in that area as the monster traveled area to area killing everysingle person without mercy. The people were powerless to stop this monster, police didn't have any means to stop it. It got to the point where the military had to be called in.
However, even with military grade weaponary, this monster was unstopable. With no chance at beating it, the military was ordered to qurantine the entire city. This incident lasted around 6 weeks before the creature reached the walls, and in a flick of its wrist the walls came down. Preparing to make its way to another city, the monster was stopped by another person wielding the same power as it. A battle which leveled most of Asgard. The battle ended a month later with the one who challenged the monster as victor. Being hailed as a hero, the man left and went to live a normal life.
All was normal for the next three weeks, however the bloodbath once again returned when the one who defeated the monster began to rampage through the city, killing everyone insight. It appeared that this was going to be a repeat of what happened before however before it could continue any further a group of people stood up with the same powers. Taking on the former hero it was nothing but a continous cycle, once the hero was defeated the others started to go on a rampage as well. The time of evolution was here as the blood-cycle starts, people began to gain powers that the monster and hero had.
The cycle of bloodshed continued for generations, until most of humanity was spread out thin. Now that a new generation is emerging, time will tell if this one will walk down the same path as their ancesters did before them.