My Yandere Girlfriend Hiding in the Dungeon Kills Me Over and Over Again - Chapter 166

Chapter 166   Sudden Change

“Ugh!”

In an instant, he tried to parry with the “Blazing Sword,” but the impact was extraordinary. It felt like being crushed under a massive rock, immense pressure that made his arms scream and knees feel like crumbling.

“Lyune! It’s me, Kiska!”

Desperately shouting, but Lyune before him showed no hint of emotion in her eyes. Transformed into something non-human, she relentlessly showered him with jet-black blades.

“Urgh…!”

His arm trembled as he swung the sword. Unimaginable strength, unlike anything from Lyune before, mercilessly assaulted him.

But more than that, his heart trembled. The gentle Lyune who had fought for him until just now had changed so drastically.

At that moment, unexpectedly, he heard her voice in his mind. Was the effect of this room still lingering?

“No… Stop… I don’t want to hurt Kiskacchi…!”

A faint voice, unmistakably Lyune’s. She was fighting herself.

“Lyune, hang in there…!”

Instantly, he parried Lyune’s attacks with his sword while encouraging her.

“No! Kiskacchi, run away! I can’t stop myself!”

Lyune’s voice echoed in his mind, yet the next incantation for magic had already begun.

“Second Tier, Shadow Claw…”

Black magical claws pierced through his legs. Unable to stand, he dropped to one knee. What would he do next? If he stayed like this, he would be killed by Lyune’s hands.

“Third Tier, Shadow Ring…”

There was nowhere to escape as waves of magical energy struck his body. The searing pain made his consciousness waver.

But in the midst of it, he suddenly realized something.

Lyune’s movements were undoubtedly slowing down.

Her breath was ragged, sweat beaded on her forehead, and her knees trembled slightly. Unlike when she had fought Elsie earlier, exhaustion was now evident all over her body.

(Her mana is already at its limit… but she still can’t stop the rampage… If this keeps up, I’ll…)

Pain and fatigue mixed into her inner voice. But at the same time, so did her suffering from losing control.

“Lyune! Stop trying to suppress your magic!”

He shouted, barely staying on his feet.

“Forget about me and use up the rest of your power!”

(But… if I do that, Kiskacchi will…!)

“Hurry up! Or do you intend to keep torturing me with half-hearted magic?”

Lyune’s movements halted for a brief moment.

“If you go all out, it’ll be over in one strike. So trust me and let it all out!”

Like someone who had been running at full speed for too long, Lyune’s body swayed heavily. Even so, she began the final incantation.

“Dark Magic, Thirteenth Tier—Void Law: Nihilism.”

At that moment, the space around Lyune began to distort. An overwhelming torrent of pitch-black magic surged, swirling and gathering. The sheer malice in its power made the entire room groan as if it would collapse under the pressure.

But then—it was over in an instant.

“Ah… ugh…”

The strength drained from Lyune’s body, her chant breaking. As she collapsed to her knees, the black magic around her dissipated like mist.

Her horns and claws remained, but her eyes, now looking up at him, had clearly regained consciousness.

“Looks like I won the bet…”

He muttered, swaying unsteadily.

The exhaustion was overwhelming.

For a while, neither of them would be able to move.

◆

It was some time after Lyune had collapsed.

“…I’m sorry… I’m so sorry, Kiskacchi…”

Suddenly, he heard the quiet sound of tears falling. Lyune was crying as she lay on the ground.

“Why are you apologizing?”

“Because… I hurt you so badly, Kiskacchi… And besides, seeing me like this… you must be disappointed, right?”

“Sure, your appearance surprised me. But I also remember that you were trying to protect me.”

Lyune’s eyes widened in surprise.

“You used the power you had been hiding to protect me from Elsie. This is just the price you had to pay for it, isn’t it?”

Turning his head, he could see Lyune sobbing in her horned form. If she hadn’t unleashed her power, Elsie would have killed them both.

“Thank you. Kiskacchi, you’re so kind.”

“Kind? I’m just stating the obvious.”

At those words, Lyune’s expression softened with relief, but almost immediately, she tensed again, looking troubled.

(Still… I really didn’t want Kiskacchi to see me like this… No matter how kind he is, this form must look scary to him…)

Her thoughts echoed in his mind. The effects of this room were still active, it seemed.

Without thinking, he found himself looking at Lyune again.

Her large, curved horns, elongated claws, unnaturally sharp teeth—her eyes, now so different from a human’s. For someone seeing her for the first time, her appearance might be shocking. But knowing that this was still Lyune, there wasn’t a single part of her that seemed frightening to him.

If anything, she still looked adorable.

Lyune had always been cute, but even in her transformed state, that charm hadn’t faded in the slightest. In fact, the horns and claws only added to her unique appeal.

Well, that was exactly why—he didn’t want her to be so hard on herself.

“K-Kiskacchi… T-That’s really embarrassing…”

Lyune’s face turned bright red as she looked down.

Ah—right.

She could hear my thoughts too. I had completely forgotten about that.

“Uh, well, that’s just how I feel, so don’t put yourself down too much.”

I said that, trying to cover up my slip of the tongue. But honestly, I was glad she understood—I truly didn’t want her to be so hard on herself. Even if the way she found out was a bit… unintentional.

“U-Um… okay…”

Lyune gave a small nod, still clearly flustered.

“If you’ve recovered enough, let’s hurry and move on. We can’t keep Nyau worried any longer.”

I gestured toward the exit Elsie had mentioned.

Besides, if we stayed in this ‘Chamber of Truth’ any longer, there was no telling what other awkward situations might happen. The sooner we got out, the better.

“O-Okay…”

Lyune nodded again, and we quickly made our way toward the exit.

Up ahead, there was an unmistakable door that looked like the way out. If we passed through, the treasure chest Elsie spoke of should be waiting beyond.

(Uuuuugh, what do I do? After what he just said, I think I might’ve fallen for Kiskacchi. This is so embarrassing—I can’t even look him in the eye…)

“…Huh?”

Without thinking, I turned back to look at Lyune.

I mean—how could I not react to that?!

“～～～～～～～!”

Lyune immediately realized what had happened, her eyes welling up with tears.

“Kiskacchi, you idiot.”

She muttered those words in a small voice.