KHR world mixed in with a dash of crayons

Don't go changing your species as you like, dammit!

"Japan?"

~LINE~

Tsuna was now rushing over to Japan, because he just remembered that he had a meeting in Japan with some important people. Apparently, Reborn(who usually did not give a single shit) would kill him if he was late. I wonder why.

So now we were currently in a plane, flying over to Namimori, Japan. We would stay there for a while, he said for two months or so.

Of course, Tsuna had the fabulous idea to send me to school.

I wanted to scream at him when he first suggested that idea.

And I did. (I also threw a whole tuna at him as well as two crayons worth of dust but those are minor details)

Turning my head slightly to look outside, I huffed and made Tsuna squirm away from me, nerved by my dark aura.

"M-mari...."

"Hmph."

He threw me a look like a beaten puppy. Tsuna, for god's sake, don't go changing your species as you like! You're a tuna, get it, a TUNA.

~SWITCH POV~

Reborn smirked at the sight of Mari ignoring Tsuna. Served him right for choosing to send Mari to school. The child was smart, prodigious even, but her intelligence was often replaced by her idiotic personality.

"Is Reborn gonna go to school as well?" Said hitman looked at Mari, who was shooting him a mischievious look out the corner of her eye.

"W-well, he technically is an adult--" Tsuna started. 'I technically am too' Mari rolled her eyes. "I'll go if he goes."

Tsuna bit his lip and sent a pleading look to Reborn. "Don't you dare." Reborn shot him a glare. Tsuna looked at Mari, who refused to face him, and back at Reborn.

Oh, this was going to be a long flight.

~In Japan~

"BITCH I SAID NO!"

The entire mansion rushed over to Tsuna's temporary office, where they witnessed Mari throwing a tantrum.

"But Mari you have to go to school--"

She let out an irritated growl. "I don't care! If you're going to send me to school, either find one with geniuses that I can actually talk to or I'll skip!"

She had relented to go to school two days before and yesterday, she did. What she found definitely did not please her because every single human in that hell hole of a place either spoke very basic english or sugar coated everything they said. Not being able to hold a conversation that she was comfortable with, she ended up with an extremely bad mood, two crushed and broken crayons, multiple curses scrawled over paper and a very foul mouth.

Tsuna had to shield himself from the barrage of curses he got once they entered the car. Like seriously.

Mari had a mouth that could easily beat a gangster in a swearing contest.

"This is like the orphanage all over again! Heck, at least the old hag talked to me like an adult!" Mari ranted, gripping another crayon tightly until it cracked.

Tsuna stared exasperatedly at the child before him. She spoke like an adult that had the personality of a child! Seriously, did she get reborn from another world or something?!!!

(Little did he realize that he mistook that thought as his own ranting when it actually was his HI. Heh.)

Looking at Tsuna, Mari narrowed her eyes. "I have an idea."