Magic 20 Volume 4

And Wallenstein finally stood before Shizuku.
"Sh-Shizuku! Run awayyyyy!"
Before the eyes of the screaming Arisuin―

He cut the silver-haired girl at the waist, splitting her in two.

"Ah―"

With a thump, the upper body cut at the waist fell to the frozen floor. Spraying an immense quantity of blood and entrails. At that hopeless sight,
"NOOOOOOOOO!!!"
Arisuin's cry shook the air

And the next moment–
"It's okay, Alice."
Shizuku's voice echoed with dignity through the underground training arena.
"...Eh!?"
"Wh-What!?"
In astonishment, Arisuin and Wallenstein scanned for Shizuku in the surroundings. However, Shizuku wasn't found
"It's okay–because I'll win."
"Shizuku, you're… alive?"
Arisuin stared at Shizuku as if she was a ghost. He hadn't taken in the situation yet. But beside him, Wallenstein–
"How can this be…!"
From his instincts born of many battles, he realized that there was only one way this situation was possible. And in order to make sure, he swung his sword at Shizuku who was standing before his eyes.
Shizuku, without moving to defend herself, received the attack on her body. A cut–Wallenstein's Device once again bisected Shizuku.
But this time no blood sprayed forth. There was no response except a spray of mist, and though Shizuku's form had been split, it immediately returned to normal–seeing this, Wallenstein was convinced.

"Y-You little rat…! You changed your own body to vapor!?"

In response, the mouth on Shizuku's flickering form curved slightly.

"Ha ha ha. As I thought, you're not just that old for show, right mister?"
Shizuku confirmed it with a sadistic sneer. Indeed. That was the true nature of how Shizuku had survived.
"I was defeated in the selection battles by Raikiri, so I've always been thinking."
–That though she had skill, she lacked determination. When facing opposition, there was nothing she could do but take a fatal wound–then how should she deal with it?
"I thought and thought… and suddenly, I hit upon an answer. Ahh, that's right. I take damage because I have a body of flesh."
In that case, she would remove that premise. In doing so, this technique was created. An aspect of water magic, an application of healing techniques for the human body, a Noble Art that disintegrates her own body into mist and dust to the point where slashes and strikes no longer affect her and then voluntarily reconstructing it–

"Aoiro Rinne[18]–I've come up with an amazing technique, right?"