We set foot in the room where Valerie's magic research was stored - the Sage Zone.

Countless orbs line the shelves on the right side of the room.

Every single one of those should contain his research data.

When I looked at the other side, I saw a number of black crystal columns.

Inside, young and old alike, various humans are trapped in a threadless fashion.

"Ouch... it hurts..."

"Help me..."

Sad voices echo from all over.

Is it a mechanism to suffer when you are in a crystal, or are you suffering from some kind of demon-guidance experiment?

Screaming and sobbing can be heard with anger and resentment - uninterrupted.

Exactly, it was a hell of a picture.

"You're the same subject as me..."

Yurin snapped with a dark face.

... Has she seen the same thing herself?

When I was Valerie's apprentice, I had been taught.

He said spells are a technique that activates people's 'negative emotions' as a source of energy.

The higher the spell, the greater the need for 'negative emotions'.

Pain, anger, sadness, resentment, and despair...

It's the same kind of thought I once tasted.

I guess they are also given the pain that goes on and on to activate some sort of spell.

I can't watch.

"─ Shea"

I ordered the [subordinate] girl.

I understand, Master Chrome.

She's creeping my will out, even if it's not a specific word.

No, even if I didn't order it, Shea would have done so of her own free will.

"─ Disconnect "

I tore crystals apart one after the other with a black, shining sword.

Free the people housed inside.

"Run if you can move. Every trap in the road we've come through has been destroyed."

and explain the directions to them so far.

"Oh, thank you......"

"Ugh..."

The majority of humans rose bitterly and walked out of the room.

The remaining dozen people seem to suffer too much to even get up.

I wish there was a way to treat it.

and

……

I turned my gaze to the back of the room and frightened my face.

A blurry tablet is standing.

The mural I cut out of somewhere...

Drawn are small high hills and countless grave markers.

Long chains dripping from heaven and one woman.

"No way..."

"It is a depiction of the curse 'Chain of Darkness'. Two years ago, I brought here a mural I found in an ancient ruin."

and the footsteps approach.

This voice...

I snapped my throat out of it.

You can't forget.

It can't be forgotten.

I've been teaching this man magic all my life.

He wants to be strong enough to protect Irina.

With that thought in my heart, I have taught this man.

He was a venerable master who was harsh, but also showed kindness at times.

Everything has become a thing of the past.

"Again, it's you... chromium"

Beyond the door stands a man with long stretches of blue dark hair.

A sharp glance is looking straight at me.

"Long time no see, Valerie"

I haven't seen my former mentor in two years.

"Why are you alive, Chrome"

Valerie looks at me with a harsh look.

"What, you're not happy that your apprentice was alive?

I was being sarcastic.

"... Hmm, you say you're a loving apprentice? Your talent was well known. I didn't have to lose it... that's why I sacrificed the Dark Chain."

Valerie snorts.

"Thanks to this, the brave Yuno gained enormous [light] power. Enough to take on the Demon King."

"You cut me off because I didn't have a lot of qualities," he said?

"That's mainly why I recommended you to sacrifice. I'm bored to teach people who don't have talent."

"Your disciples, whom I wiped out, were full of talent."

"... some of them could have become comparable users to me. What a shame."

Valerie flaunts her face.

I don't know if it's his disciple's talent or his mistress he's sparing the most.

"We'll get back to it. How did you survive? How did you get that [dark] power?

Valerie makes fun of me.

In those eyes are vigilance and fear.

And

"There is no way that those who have been sacrificed of the 'Chain of Darkness' can live... usually swallowed by [darkness] and should be extinguished. But why... and even the power I couldn't get..."

Perhaps, jealousy.

To me with the mighty power of [Darkness]...