Ok, so you know the drill, Louise summons someone from a different franchise/story/whatever. Things change here and there, but canon will still be followed. Time for Disclaimers!

Disclaimer: Mob Psycho 100 and Familiar of Zero belongs to ONE and Noboru Yamaguchi,
respectively. I own nothing. Also, don't sue me. Obviously,
this story is fanfiction after all. And non-profit too.

Well, here's my first story. Please criticize as you see fit.

Chapter 1: Mob Character

It is a beautiful day. Birds are singing, sky is shining, and an explosion that came out of nowhere. Really beautiful.

Earlier, the second-year students of Tristain Academy of Magic gathered around for the Familiar Summoning Ritual. Everyone has summoned their familiar, excluding one student.

Her name is Louise. Despite being a noble (which of course, makes her a mage), she has zero magic potential. And nearly everyone berated her for it...

Today, she will summon a familiar.

"I wonder what kind of familiar she will summon?"

"I bet it will end up in another explosion..."

The students snickered as they surrounded her. They were sure not to get too close, however. They all knew too well to do that, as per their experiences with Louise's 'magic' during their classes.

"My servant, who exists somwhere in this universe!" she began to shout as she waved her wand. As if on instinct, the students and some of the staff around her back out a bit.

"What kind of incantation is that?" Montmorency said. She too was quite surprised, but not impressed.

"Oh divine, beautiful, and powerful familiar spirit! I wish and assert from the bottom of my heart..." The crowd watched intently as she casts.

"Answer my guidance!"

An explosion followed. At least that student won their bet, obviously.

...

'15%'

Mob was surprised when he saw the green portal. He had to excorcise some evil spirits in the area, as per the instruction of Reigen.

He tried to excorcise it, but it seems that it isn't spiritual in nature. So he decided enter the portal.

Suddenly, he fell. The green portal suddenly closed, and he heard a voice from within.

"My servant, who exists somwhere in this universe!"

The voice sounded as it belong to a young girl. But there was nothing inside this place, only weird lights. He saw a green light similar to that portal earlier, so he used his psychic powers and floated towards it.

"Oh divine, beautiful, and powerful familiar spirit! I wish and assert from the bottom of my heart... Answer my guidance!"

Then there was light. And smoke. It covered their eyes, not just his own.

The smoke dispersed after the explosion. When it did, they saw a human in the middle of the explosion. He was wearing a uniforms of some sort, yet it was worn by a peasant. The plebian in question looked very plain, really. His eyes are plain, hair is plain, even his posture. As if he was the very embodiment of plain-ness. They were silent for a while.

"Ha! As expected of Zero! A plebian for a familiar!" Kirche, the brown-skinned woman with red hair and exposed chest, laughed as she saw him.

"A plebian for a plebian-mage, truly you amuse us Zero!"

"Your runic name really suits your familiar! Louise the Zero, summoner of plebians! Hilarious!"

"Shut up!" Louise shouted. "Mr. Colbert! Can I try summoning again!?"

The teacher sighed as he explained. "Louise. A familiar is bound to it's master once it is summoned, and it will decide the entire life of the mage. Sadly, I can't allow you to break it."

A silent gasp escaped from her as he continued to explain. "Summoning another is blasphemy to the first ritual. Finish the ritual."

Louise just stood there, looking at him. A plebian like him? As a familiar? It was insane! Everyone else just laughed around her, insulting her. The familiar just stood there as, if he had no idea what he was doing there.

"Hurry up, or you'll be expelled." The teacher said. Everyone else gasped, as if they wanted this to happen.

Gaahh! She was already out of options. She had to do it. She walked towards him, to seal the contract.

Rule of Steel, Louise. Rule of Steel. She recited the mantra her mother taught her. The familiar there just stood, at least he isn't squirming around or anything...

...

It wasn't this place. It looked very different to the portal he entered earlier. He wasn't in the alley between two apartments, no. He was located in the middle of a field. And the field was located between two stone walls and near a stone tower. Despite the smoke covering him, he still can see.

When the smoke cleared, he saw people. The people here are different. However, he saw monsters. They were beside those people, and the people were talking. He can't understand what they said. And when he looked around, he saw stone walls. And these stone walls were made out of stone bricks. The people around him wore white shirts and black pants or skirt, and most of them wore a blue or black robe. Some of them held sticks, others held a larger stick. It was very different, as if he was thrown altogether to a different world.

In those few moments, he saw a girl. She has pink hair and wore a white shirt and black skirt with thigh-high leggings and a black robe. She held a stick, maybe a wand, and she was walking towards him...

Well, at least the familiar didn't move much. She has to finish the ritual, complete the contract with her familiar. As she went near him, she can't help but feel the plain-ness of this plebian. His face looked completely plain, and devoid of emotion. His face was like Tabitha's, only more plain and less sad. Really plain. Even his hair looked really plain, a bowl cut. And his eyes, his eyes looked rather boring, too boring...

She cut off her thoughts as she closed in. The plebian was still looking at her, in a really normal fashion. At least he wasn't really that tall. Just average. Every part of him screams average. And boring.

Everyone was now cheering, or insulting, depending on how you look at it. Not. They are just really insulting her.

"Be glad for this. Normally, a noble won't do this to a plebian like you." she muttered. The plebian just looked at her.

Sighing, she then closed the distance between them.

"I am Louise Françoise le Blanc de la Vallière, and I am your master. Pentagon of the Five Elemental Powers, bless this... humble being, and make him my familiar.

With that she leaned to kiss him.

...

What? What is happening? It was sudden, her kiss... It was straight to his lips. What was she doing?

'30%'

"Wh-Why did you kiss me?" he muttered.

'32%'

Nobody replied, his voice was weak, and they spoke in the different language. He can't understand them.

'35%'

"What? The plebian can't speak?!"

"Eh? Louise summoned a brainless plebian for a familiar?"

Everyone was already laughing, he can't understand what they say, but he also knew that they were laughing not just at him. He then feel hot, as if he has a fever. His right hand glowed and strange symbols began to appear. With that, he fainted...