What to know before starting:

Inspiration:The music album "Puppenspieler" (ger. Puppeteer) of Unheilig! :)

Disclaimer:Everything you already acknowledge from Ao no Exorcist, belongs to the wonderful Kazue Kato! The quoted parts of the lyrics, the title of the story and chapters are the property of Unheilig ... I just made up the weird plot around it ... yeah, sad but true. ;A;

Warning: A pretty sinister glimpse into Amaimon's and Mephisto's childhood in Gehenna... darkfic! Don't like don't read!

Puppeteer
Prologue: Curtain up!

It was pink and the cover was plastered with countless, glittering heart and star shaped stickers. A lock hold the A5 sized booklet tightly closed and large golden letters formed the word "diary" on the front.

It was so eye-catching that it drew all the attention from the papers, folders and reports neatly piled on Mephisto's desk. And Rin already found it pretty mesmerizing.

Thoughtfully, the teenager tilted his head to one side and crossed his arms in front of his chest. Could he dare?

The principal ordered him into his office just about forty minutes ago discussing Rin's tendency to doze off in class. After a short sermon, which could not seriously be described as such compared to the rebukes he always had received from the old man, Mephisto got an emergency call. Some problem regarding the school's safety charms. In the meantime the teenage boy was supposed to wait in the office for the chairman's return.

At first, the half-demon took a closer look at all the gadgets that were stored in Mephisto's glass cases; mostly model kits, gimmicks and doujinshi. Rin rolled his eyes. The clown had a strange conception of Japanese culture and its lifestyle.

Yet, shortly after, Rin discovered the flamboyant diary on the desk. The moment he lay eyes on it he started an inner battle over his choice-to-make: His conscience forbade him to even look at the book inappropriately. His curiosity, however, wanted to know what the trickster wrote down into such a booklet. Well, the demon boy was quite sure this was pretty silly and awkward, but maybe he could gain some useful and also entertaining information about the mysterious demonic principal.

Rin's pointed ears twitched as he heard steps approaching and a familiar whistling tune echoing through the hallway. Mephisto!

Without wasting a second thought about it, the teenager snatched his subject of interest and hastily shoved it into the inner pocket of his school blazer. Just in time, for just a moment later the office door opened and the chairman entered.

"Much Ado About Nothing," the elder demon joked cheekily and chuckled on his own for Rin wasn't smart enough to catch the gag. "Oya-oya Okumura-kun, where were we?"

"Oh... you just started to scold me and sorta raved over the art of Ikebana at the same time."

"In fact ... well, I assume that you don't fall asleep in class ever again. Your bad habits will be ascribed to me, your guardian, so please consider that I have to preserve a certain image before misbehaving. Alas, you can leave now. " the headmaster smiled and waved the teenager goodbye.

The dismissed snorted indignantly. "What? That's all? Why not telling me this before leaving and ordering me to wait, stupid clown! "

But Mephisto ignored Rin's protests intentionally. He sat behind his desk again, absorbed in his paperwork and signing them every once in a while without looking up again.

Annoyed Rin shook his head and scowled as he left the office. But at the same time his hand wandered over the barely visible bulge at his chest. Hopefully, this diary was worth those thirty minutes of futile waiting...

*** TBC ***

A/n: That's it for the start! You could even say this is kinda the pilot chapter... if it caught your interest I would be very pleased to receive some feedback! Positive or negative? That's for you to decide! :3
I'm not a native speaker so please forgive me if there are major grammar errors or typos. I wish I had a native speaking beta... someone volunteering? öö