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

Albert told the information we have to the centaurs. Unsurprisingly, they are doubtful of many things.

"We can tell when someone is telling lies or truth. And we can also tell if there are some things that you are doubtful about, we can tell right away," the centaur leader said.

I guess their lie detection ability is more advanced than Albert's. Albert can't tell if I'm telling lies or not even if I said something I'm doubtful about. But the centaurs can.

As expected, they are more useful than Albert. If possible, I'd like to get close to just one of them so I can bring that one anywhere I go instead of Albert since he has many things to do. Though I don't think it will be their leader since it will be the master level summoner who will make a contract with the leader.

"So, which part are you doubtful of?" Albert asked the centaur after he told them everything.

Convincing Monsters Can Only be Done with Strength