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....

"Now, let's see what our grand prize is!" I said to the group.

Everyone was excited. After all, the previous two rewards had come from relatively weak demons and youkai.

The reward from the extraordinary—Yamata no Orochi was sure to be amazing. With that thought, everyone looked at the card in my hand, eager to see what it contained.

I crushed the card.

A blinding, golden light erupted, shooting up into the sky like a pillar of pure energy.

Shock!

Awe!

"What's happening?"

"Wait, that sword—Could it be? How is that possible? That sword disappeared long ago. It shouldn't be here."

Rias, who had been relatively calm, suddenly widened her eyes, recognizing the identity of the sword. But that only served to increase her shock!

"...." Looking at the holy aura emanating from the weapon, I was dumbfounded.

Because that holy sword, radiating divine light, was none other than [Excalibur]—the Sword of Promised Victory!!

This particular [Excalibur] was a Divine Construct created by the planet itself, not by humans. Unlike the famous alchemically-created [Excalibur] of a certain King, this sword was crystallized from the faith of humanity, forged within the planet as a weapon to protect the Earth. It was an ultimate weapon, an "Anti-Planet" Noble Phantasm.

'Was my luck finally turning around?'

"Hahaha, I knew it Today is my lucky day!" I was ecstatic.

'Amazing!'

The others, witnessing this scene, were completely stunned!

...

Then, Rias quickly turned to Kiba and started to explain, "Kiba, this holy sword is different from the ones created by humans."

But before Rias could finish, Kiba interrupted her, his expression complex. "Buchou, I know what you want to say. Don't worry. I understand the significance of this sword! Don't worry about me. I'm just a little shocked to see this legendary blade."

After all, who wouldn't be shocked?

The legendary Sword of the Planet, appearing before them in such a manner was unbelievable.

Under their bewildered gazes, a golden light appeared in my hand, and the [Sword of Promised Victory] slowly descended from the sky until I grasped it.

The moment I held the [Sword of Promised Victory]—I felt my blood surge, as if an Infinite Power was coursing through my veins!

At the same time, Rias and the others approached me, their shock evident. "Kyoya, this is."

I glanced at them and joked, "Now that I'm the master of the Sword of the Planet, does that mean I'm the reincarnation of King Arthur in my past life?"

Hearing my words, the girls actually started to think about it seriously.

Seeing their reactions, I quickly said, "Hey, I was just kidding—Don't take it seriously."

But they seemed to have genuinely considered it a possibility. I was speechless. I decided not to explain any further and let them believe what they wanted.

But in the end, after discussing it with the others, I made a decision that would ensure our victory.

...

...

Then, in the next second, we were suddenly back in the [Hyperbolic Time Chamber].

Back in the chamber, everyone felt the oppressive atmosphere once again. Kiyome, who had been training, looked at us curiously.

"How was it? Was the Dungeon Party fun? Did you get any rewards?"

So, we recounted our experiences in the other dimension to her in detail.

...

Hearing about our thrilling adventure and the horrifying power of Yamata no Orochi—Kiyome was filled with envy and regret.

Seeing Kiyome's dejected expression, I grasped her hand and gently kissed her cheek.

"What's wrong, Kiyome? Are you upset that I didn't take you? Don't worry, there will be other opportunities in the future—I'll take you with me next time, okay?"

My sudden intimate gesture made Kiyome blush, and she stammered, not knowing what to say.

Rias and the others just watched them with strange expressions, but they didn't say anything.

"Alright—everyone, let's continue training. We need to make the most of this time before the Rating Game!" I encouraged the group.

Hearing my words, Rias and the others were re-energized. After all, in just one day, their power had increased dramatically.

And so, the group resumed their hellish training.

...

Two days passed in the outside world, and the training inside the [Hyperbolic Time Chamber] was finally complete.

Rias had now fully mastered the use of her [Power of Destruction], and her power level had stabilized at the pinnacle of the High-class level thanks to the enhancement.

Koneko's Martial arts and Kiyome's magical beasts had also improved significantly. Akeno and Kiba had both reached the mid-level of High-class.

Kiba had suffered the most during these two years. Being the only guy, I had been particularly "hard" on him during training.

I had even summoned lightning from the sky to "encourage" him to train harder. For two years, he had trained almost every day until he was bruised and battered, lying on the ground, unable to move!

It was a sight that made everyone feel sorry for him.

"Kyoya, I feel like I could easily defeat Riser now with my current power." Rias said, feeling the unprecedented power within her.

"It seems Rias is full of confidence—But I won't fall behind, either." Akeno said excitedly.

"Alright, alright. Even though only two days have passed in the outside world, you've all been training for nearly two years. You must be under a lot of pressure. So, let's relax for the remaining five days." I suggested.

Hearing my suggestion, everyone cheered up. They had been training nonstop, and they were eager to relax.

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