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

Seriously, they never stop shouting that. Just how many times have it been since they started shouting that?

But now that the space mage is gone, at least the battle will be easier.

They thought that their training since childhood is good enough to defeat an Aura user. But no, they are wrong. After all, it's impossible for them to experience a real battle against an Aura user since I am the only Aura user in the world.

They can only train by what their Evil God told them about me. They could never practice what they trained if it's truly effective or not.

My guess is that the Evil God himself didn't really care if these groups of people could kill an Aura user or not. He probably only wants safety. Making them to stop me for as long as possible so he can have the time to do his own thing. Which I don't know what that is.

Killing the Other Warriors