Luther asks Arthur doubtfully, "Do you really not know how the things work here?"
"Are you reincarnated?"
Arthur gets shocked from Luther's question and asks, "Are there people who get reincarnated in this world?"
"Is reincarnation or summoning common here?"
Luther replied, "Yes, in human realm summoning and reincarnation is most common thing but in our monster realm it isn't common."
"There is only one reincarnated monster in this world who became the Demon lord of this monster realm and every one call him 'Demon lord Rubius Margold', and he was a legend but however his actions towards humans made him a villain."
"Some people say a human hero defeated the demon lord and some say after self realisation he attempted suicide. But one thing is most commonly circulates i.e. 'someone will again reincarnate into this world and he will become the greatest demon lord'. And it was said by none other than demon lord Rubius himself before his death."
"Wait, I think you are the one whom demon lord mentioned in his prophecy."
"Wow, I am meeting future demon lord. Will you make me your financial advisor? Please."
By listening the last sentence Arthur little hesitated and with that hesitate he replies, "We will see about that in future. But really I don't that I was Reincarnated or Summoned."
"Because the moment I opened my eyes in this world after dying in my original world, I saw a summoning magic circle. And also this is not my original body. I think only soul is Summoned or Reincarnated and I am not sure what we call this."
After listening to Arthur's words Luther thought for some time by putting his hands on his cheek and uttering"hmmmm"
And then Luther told Arthur, "I think to you it is reincarnation and for the one who summoned you it is your summoning."
Then Arthur replied, "May be. But you said that we are in monster realm but most of are looking like humans. And how you can say that I am monster not human."
Luther answers, "It is simple, if you sense the mana of the people here you can observe that the mana surrounding them has little curves and it looks like a candle where the intensity is greater at center and slowly fades away with increasing distance from the candles' wick."
"But the mana in humans is uniform and mostly is concentrated in there guts. One can observe the mana circulation of the mana in humans if he is a master of observation. Otherwise one can only sense the spherical mana of humans."
After listening to Luther's words, Arthur tried to sense the mana of the people surrounding him and observed that the mana of every being surrounding is same as Luther mentioned.
Then he asked Luther, "What about dungeons then?"