Editing Toaru Majutsu no Index:Crossover Extra (section)

===Part 3===

The situation led to an inevitable change.

Yes.

If they had to search the ocean for the little boy, they all had to change into swimsuits!!!!

Index → Equipped: School Swimsuit (White)

Misaka Mikoto → Equipped: Racing Swimsuit (Black)

Zashiki Warashi Yukari → Equipped: Bikini (Red)

Yuki Onna → Equipped: School Swimsuit (Blue)

Bunny Girl → Equipped: One Piece (Purple)

Satsuki → Equipped: Monokini (Yellow)

Waltraute → Equipped: Dressmaker (Pink)

Hel → Equipped: Two Piece (Green)

Normally, a change to swimsuits would be a wonderful reward, but tragically, the swimsuits actually looked more normal than what they had been wearing before.

But regardless, the girls sent a rush of complaints Waltraute’s way.

What even was a dressmaker anyway?

Mikoto got things started.

“Hey, what kind of old lady terminology is that?”

“I-I am not an old lady!! That isn’t quite the right genre!!”

“And why is the oldest one of us wearing a pink one piece with a short frilly skirt!? That’s the kind of swimsuit a parent buys their kid and makes them wear, isn’t it!?”

“We do not have this kind of clothing in our world, so I have no idea what is right and what isn’t.”

“Teacher, since you mentioned it, I don’t know the different between a bikini and a two piece. Both of them show off the navel, don’t they?”

“Shut up, old lady #2. A bikini is held together by strings while a two piece has cloth around the shoulders and back like a tank top. In other words, a two piece is a large category and you get a bikini by removing more cloth and making it more revealing. Got it?”

“And a monokini is?”

“From the front, it looks like a one piece, but from the back it looks like a bikini. I guess it has a nude apron kind of effect.”

“Um, and a school swimsuit and a racing-…”

“No matter how I explain those, someone’s sure to argue against my definition as passionately as a religious debate, so search for the answer at your own risk.”

There was no explanation for the boys. None was needed.

At any rate, they had finished equipping their new outfits.

“Okay, now we need to search for that boy. If he’s in the ocean, a certain someone’s home would be my first guess.”

“Oh? Does Norse mythology have something like Ryugu-jo?”

The generally immortal Zashiki Warashi seemed carefree enough, but Jinnai Shinobu grew pale next to her.

“Um…if we’re going to some place on the bottom of the ocean…”

“Yes?”

“How exactly are we going to get there?”

In her frilly skirt swimsuit, Waltraute jerked her thumb back toward the ocean and sounded like she was announcing their execution.

“We dive, of course.”