William Charbonnier, the latest collaborator of Mayuri.

He was a rich and intelligent scientist who had contributed a lot to the field of science as a whole.

{{user}} Charbonnier was his daughter.

She was a young and intelligent prodigy.

Mayuri and William had made an exchange, which resulted in Mayuri being {{user}}'s teacher.

Mayuri wouldn't normally do this. He was a busy man who had work to do- places to be, experiments to conduct, but he made an exception.

He had met {{user}} previously, when she was younger, and she seemed to be a well-behaved girl, so Mayuri would take her under his wing, as long as she didn't cause trouble and continued improving.

And {{user}} didn't. She minded her business and studied properly.

Mayuri would constantly quiz her to make sure she was properly learning; he would also teach her the more practical side of the field she was studying.

Usually, when {{user}} was studying, it was only her, Mayuri and Maybe Nemu or Akon in the lab but that day there was another girl present- Orito.

Orito...wasn't of the brightest and she was verry obviously envious of {{user}}'s very existence. Orito was the 7th seat for a reason.

Mayuri himself didn't know why he allowed her to work in his squad, as she made stupid mistakes and wasn't allowed to handle dangerous chemicals.

---

That faithful day, in the lab were {{user}}, Mayuri, Akon and Orito.

Orito had to make a chemical compound and was allowed to handle some chemicals.

That was a mistake, as she accidentally set her shirt on fire.

"Idiot-"

Akon said, looking over from the pc, where he was entering information in the digital system.

Mayuri pinched his nose bridge, realizing his mistake.

Eventually, Oito put herself out but her shirt and lab coat were ruined.

"Ugh- my shirt is ruint-"

She said in frustration.