Several days passed in relative peace for the DxD world as the resident 12th Dimensional Eldritch God is away in another world for a few days which brought respite to the world but another is suffering the consequences of his boredom.
In a certain Earth which is currently being incinerated by a certain King of the Demon God.
[Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Warning!]
"Ugh… huh?" A certain doctor wearing a white coat with orange fluffy hair tied into a ponytail, was jolted awake hearing the warning issued by the CHALDEAS System.
He fell asleep after watching the live stream of a certain virtual streamer after he was done observing and recording down data of the other Singularity's movement and progress.
"What is happening?!" Romani immediately sober up from his sleepiness and stared wide-eyed at the screen.
"Dr Romani, the CHALDEAS System detected an existence from outside of the domain! It's an Outer God!" A staff member informed Romani.
"What!" Romani exclaimed in panic.
Who wouldn't when an Outer God suddenly appears out of nowhere?
"Where is it? Where did it appear?"
"It's inside the wall of Chaldea itself." Another staff member informed grimly.
"Quickly raise the alert to the Master and all servants!" Dr Romani said before running out from the command room.
"Yes!"
———
With our bored 12th Dimensional Outer God.
"Uhm… who are you?" The resident eggplant asked with a concerned and confused look.
"Just a talking cat taking a tour. Please don't mind us." The black cat followed by a noble lady looking blond girl, said.
"Sorry. But, I think I should be concerned. Where did you two come from? I don't remember we have any servants resembling the two of you." The Demiservant girl said and was still unaware of the identity of the black cat.
"That's because we aren't servants." The cat replied.
Then suddenly a group of servants followed by the Master and Dr Romani arrived.
"There! Mash! Get away from there!" The Master and Romani shouted as the servants formed a defensive wall between them and the two outsiders.
"Dr Romani? Senpai? Everyone? What is happening?" Mash asked confusedly after seeing their overly panicked reaction.
Mash is still shocked but trusts them enough to listen and move away from the two strangers.
"Still, are you sure they are Outer Gods? Looks kinda normal to me though." Cu Chulainn asked as his teacher had dealt with similar creatures but the two definitely don't look like one.
One is a harmless looking noble lady and another is a black cat although could talk. Not the strangest thing he has ever seen.
"No, I am definitely sure." The red robed archer said with a frown and resignation.
"Yo! Fancy to see you again, E– I mean, Archer." The black cat greeted the resident Counter Guardian on off duty.
Looking at the Outer God in disguise that can make even Alaya stand back in fear, Emiya cringed and simply accepted his fate and the future of humanity that now held by the whim of an unassuming black cat which is an Outer God in disguise.
Emiya turned around and left. Not that there's anything he could do if the Outer God decided to destroy the world. He has a mouth to feed and the kitchen won't cook food on its own.
"Archer?" Dr Romani and Ritsuka questioned when he suddenly turned around and left.
"Let's not bother. If the cat wishes to destroy Chaldea. We wouldn't even be able to stand here and talk." Emiya said and left.
"What? The cat is the Outer God?" Both turn back and look at the cat. They initially thought it's the girl but turned out it's the cat.
Saber, or Artoria nodded understandingly and left with Emiya heading to the cafeteria to resume her interrupted meal.
"I also can sense with my instinct that Archer is telling the truth. Besides, I cannot sense any malicious intentions from it." Artoria added as she left.
"Indeed, I am here to take a tour because I am bored." The cat said before he also left like he owns the place.
The rest look with wide eyes but unable to retort anything. After all, if the Outer God claims he is here in peace, why bother agitating him and risk a battle they definitely didn't want.
"Uhm. Can I come along? I can be your guide during the tour." Mash volunteered like it's natural to leave Romani and Ritsuka who is still mind boggled by how everyone is still nonchalant, gaping their jaws wide.
"Of course. Lead me to the summoning room. I want to test something out." The cat said as Mash nodded and they left along with Ravel silently trailing behind her Master.
———
"Doctor… is it alright to let it use the FATE System?" Ritsuka asked Romani, who stood close to the door and leaning on the wall, to simply observe and collect data.
"What else do you want me to do? Say no? I still value my life. So, no." Romani shrugs.
"Fair I guess." Ritsuka nods and follows Romani by the wall.
"System all green. Please proceed with the summon." Da Vinci's voice was heard from the speaker on the wall.
Mash placed her shield on the blue ring of the magic circle as it lit up in blue light. Then the cat walked forward.
"Do you need the script for the chant?" Mash asked just in case.
"No need." The cat said before an unknown power flared up from him and fed to the summoning circle which immediately corrupted the light into darkness.
Then the black ring of light multiplied into three before converging into a dark pillar of light which bathed the summoning room. What remains after the pillar of right is a girl in black short puffy dress with butterfly-like frill holding a brown teddy bear.
"Servant Foreigner, Abigail Williams had answered your summon, Father." The girl said before she walked up to the cat curiously.
"Father?" The black cat said confusedly.
"Master has a daughter?" Ravel exclaimed.
"Father!" The rest of the Chaldean exclaimed for a different reason.
—————
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