Editing Unlimited Fafnir:Volume 6 Chapter 4 (section)

===Part 1===

Tia Lightning thought back to what Kili Surtr Muspelheim had told her at the Castle of Mirrors.

"As things stand, Tia, Yggdrasil cannot be defeated no matter what. But if you give up your human identity, there might be a path to hope."

"Eh...?"

Tia stared blankly at Kili.

The hall all covered with mirrors gave an illusion of infinite space. At the same time, it also produced countless reflections of Tia and Kili.

An uncountable number of virtual images—Facing the black-haired girl was the girl with two red horns on her head in great unease.

"I originally planned to raise you as ''the trump card for taking down Yggdrasil''. Your horns are also an organ existing for the sake of opposing Yggdrasil."

"These..."

Putting her hands on her head, Tia touched her two red horns.

"Indeed, this is an organ connected directly to the brain, which is why I can't put it on myself. Manipulating your own brain will mess up your concentration in the process, causing the control of biogenic transmutation to fail."

"Then... If Tia works hard, Yggdrasil can be defeated?"

Tia asked timidly but Kili shook her head.

"No, I haven't finished with your treatment, so those horns cannot function as intended yet. But if you wish, I could perform the final treatment for you."

Staring into Tia's eyes, Kili made this proposal.

"Then like this... Tia will be able to help Yuu and the others?"

"If all goes well. After all, I can't guarantee success since this is the first time, but if your horns function as planned, Yuu and the others have a shot at victory. However—"

Kili paused and narrowed her eyes.

"—The moment Yggdrasil is defeated, you will surely become a ''dragon'' transcending the boundaries of Ds and humans."

"...!"

Tia gasped and took a step back.

"Don't worry, I won't force you, so no need to be afraid. I'm no longer a puppet controlled by Mother. I will freely decide my 'way of living' according to my own will, so please make a choice according to your own wishes."

Kili's expression turned gentle and she smiled at Tia.

"Kili..."

It was a gentle smile that Tia had never seen on Kili's face.

"Yuu said before that how one lives their life is more important than what they are. What matters is not the identity of your existence, but what you want to do."