A New Butler [Edited]

"Are you the one who summoned me," said the summoned man in a hoarse voice.

I was in shock at seeing the man, he looked too much like the evil butler of a certain bouncy blue slime.

I just stood there staring at his face.

after a while, he said to me, "Is there something on my face"

" No," I said with a bewildered face, I was shocked.

he was Diablo the primordial black from Tensura, WHAT THE HELL IS HE DOING HERE?

Last I remember this was the world of DXD so what the hell is Diablo doing here in DXD? What the hell was that magic circle?

I broke out of my shock and asked him "Who are you" as he could be someone else who looked like him.

he replied "I am Noir one of the primordial demons, the primordial black, and I am here to answer your summon "

Yes, that confirms it he was Diablo but before he met Rimuru.

"Now do you have any request mage or should I leave," he said to me in an annoyed tone as I had not answered him since he came here.

" do you know, where you are standing," I asked him as I wanted some answers.

he looked at me as if I was an idiot and said "Mage, Do you know who are you talking to I am Noir the primordial demon, do you not know who I am, do you expect me to bow to you?, know your place mage I can kill you with just a snap of my fingers"

yep, he misunderstood me, I was asking him to tell me if he knew this place he is currently at, as the magic circle present here could have been used earlier and he could have been summoned here earlier, but he misunderstood me as I were a grate mage asking him to respect me.

"you misunderstood me I was asking you if you recognize this place" Then I also told him about the basement, the magic circle, and how this is a new world and a little about his old world, then he asked me to show him the magic circle which was drawn in the room.

"this magic circle was designed to summon one of the primordial demons, it was designed by a powerful mage from the high human kingdom many years ago in my world, but this one here is a modified version of that circle, this is very interesting," said Noir as he looked at the magic circle very intently.

"and can you tell me what is the function of this circle here," I asked him as I pointed towards the other magic circle present in the room.

"hmm... this magic circle is used to summon spirits, which kind I have no idea as these are modified with a special magic sequence unknown to me," said Noir staring at the magic circle as if studying it.

"Can you feel your connection to the spiritual plain of your world?" I asked him as if that was possible, that could mean that he could go back and forth without any problems.

"yes, though it's quite weak, it will be strengthened enough to go back and come here on the night of the red moon," said Noir.

"what do you want to do now, Noir," I asked him as it was an accident that he was summoned here, and I frankly want nothing from him as for now, and when I do need him I could just summon him again.

As Noir listened to my words he had a calculating glint in his eyes then he said to me-

"Kufufufu Allow me to serve you from now on, it was fate, that we met today, and I have yet to complete your request for my summoning"

saying that he bent his knee and vowed

"I, Noir, the primordial black, pledge my undying loyalty to you," As he said that a white light came out of noir's chest and entered mine.

after the light entered my chest, I could feel a connection with noir, it was like I could command him to do anything, and it felt as if I was his master.

"As the reward for the show of your loyalty, I Rey Nohara grant you the name DIABLO "

as I granted him the name almost all my magic left my body, I had 10% of my mana left and I recovered 60% of my magic power as we were talking but by just granting him the name 68% of my magic reserve was depleted. only one percent of my high transcendent level magic power is left. I had just enough magic power to not pass out.

after I granted him a name Diablo got covered in a cocoon as if he was evolving. and after about an hour he came out, he was a little different from before.

Diablo's change in appearance is possibly the least drastic after any evolution, only his princely garments were replaced by a Butler outfit, reflecting his wish to serve me, but despite that, his dignity didn't decrease, but rather even increased.