asuya

Roy died during a war against the Evil God Cult, but somehow, he returned back in time to 30 years in the past where he was just a boy who awaken his summoning magic. 
Just a few days before his death, he became the only Aura user in a world of magic. 
Using his knowledge and experience, he will become an Aura user again, faster than his previous life. 
Accompanied with a shape-shifting black slime, he will make sure to protect everyone he cares about and win against the Evil God Cult.

The Only Aura User In Magic World

"Other than becoming stronger and losing their mind, what else will happen?" Albert asked the female vampire.

"I don't know. We also thought that those were just myth. And there hasn't been any case of someone drinking another vampire's blood," the vampire said.

"There have to be at least one case of a missing vampire. After all, your king suggested this plan to half of the vampires here. Which mean he already know that it will work," Albert said.

"…there were some missing vampires. But they were just some low-rank vampires, and no one cares about them gone," the vampire explained.

In the battlefield, Kayla and the other expert level mages have started fighting the crazed vampires. Those vampires don't even care how injured they are, and as long as they are not dead yet, they will attack anyone in sight. Even their own kind.

Basically, the battle has changed.

Angela Finally Awake