Laffey_

"Before the towers fell, before everything was consumed by darkness..."

Leo Astralis whispered to himself while traversing through the rubble of the ancient structure. 

His body bore the scars of survival, bite marks that throbbed against the coarse, blood-stiffened fabric of his clothing.

"...I wonder what the world was like."

After humanity failed to complete the Tower almost 700 years ago in time, it exploded, spreading monsters all over the word.

Even the system, which blessed humans with power, had abandoned them. Or did it?

[Run]

A singular message urged Leo to escape, yet it was short lived as was he was caught like an animal in a trap.

And just like an animal he lashed out until the very end, taking one of the captors to the grave with him.

But as darkness closed in, the system spoke again.

[One time Regression activated]
[Congratulations. You've activated the Heart of the System]

Re-Awakening with the Summoner's Class

Phyr's ghost began to breathe heavily as the beating heart of the Hydra sank deeper into the cold body.

Zeph asked, worried about the well being of her sister. She tried to ran up to Leo, however a strong gust of wind pushed her away against the wall.

A few guards had heard the commotion and ran in to check what was going on, and as soon as they saw a force field around Leo and the runecrafter they hit the alarm.

One of them shouted and took out a longbow, pointing it at the barrier and firing an arrow.

It had no effect as the dense Mana emitting from the heart bounced it off.

More of it was being absorbed than he could shoot out, tearing him from inside out, but if he stopped refining it now, the heart would be absorbed wrong.

He summoned more and more serpents around himself and shot them randomly, just to burn through as much as possible.

Luck