Chiyo's transformation, while surprising to Kaito, also felt reasonable to him.
Although he didn't know what caused her to transform into this form ahead of time, he could still see the violence filling her eyes.
Chiyo needed Kaito to help her suppress this strange energy within her body.
With one hand, he grabbed her.
Instead of going to the Jade Chamber, he headed straight for space at the fastest speed, approaching the speed of lightning.
Confirming that Chiyo could fight in space, and even releasing a vast amount of purplish-black strange energy, Kaito smiled and began suppressing her.
The main thing was to deplete the energy in her body; nothing else was needed.
Chiyo kept resisting, also activating this energy as she did so.
Although he didn't know where it came from, it was likely forcibly obtained during her previous life.
Half an hour later...
She was gradually becoming exhausted, her skin becoming exposed.
After her eyes returned from being pitch black to their original whites and purple pupils, Kaito reached out and pressed his hand against her forehead at that moment, helping to completely expel all remaining energy from her body.
Bang——!!
Her clothes were all torn apart.
But that wasn't the point.
Chiyo had begun to return to her original form, though her body was still in its transformed state and she was extremely exhausted.
"..."
He brought her into the Jade Chamber and let her rest on a soft wooden bed.
"How do you feel? Is your body feeling better?"
"Cough... Thanks to you, Kaito-nii... Otherwise, I wouldn't have been able to control this energy and would have gone berserk."
Chiyo wasn't embarrassed by her current state. Instead, she placed a hand over her heart with lingering fear and expressed her gratitude.
It was true...
Ever since her memories started returning intermittently, this evil energy had suddenly appeared within her.
In fact, while in the other world, she had to secretly go out to remote areas to release some of this energy through random destruction.
The reason she didn't tell Mamako was because it was something she couldn't help with anyway.
Telling her would only add to Mamako's worries and anxieties.
As a daughter, she knew her mother very well...
"Tell me, what happened in your past life?"
Kaito sat down on a nearby sofa. Chiyo slowly pulled the blanket over herself, though not completely covering up… a casual gesture.
She didn't mind Kaito seeing her, or perhaps it was because it was Kaito that she didn't mind.
Besides, he had already seen her before; continuing to see her didn't matter.
She was, after all, a Demon God...
"Well... Actually, in my past life, I was one of the Seven Demon Gods of the Demon Realm."
"The Seven Demon Gods are each born with unique Authorities, much like gods."
"I, the Black Goat, was once the embodiment of Lust."
"The Seven Deadly Sins, you know about them, right, Kaito-nii?"
As she slowly recovered, the vines behind Chiyo began to sway again, and her demonic aura gradually started to emanate.
This was a sign that she was regaining her demonic form.
After all, her current body wasn't an ordinary human one either.
"The Seven Deadly Sins... Pride, Envy, Wrath, Sloth, Greed, Gluttony, Lust. I know them all, though I think Lust would suit races like succubi better."
Kaito naturally knew about them, but he hadn't expected the other world where Mamako lived to have such a system.
"Yes... Conversely, on the human side, there are the Seven Heavenly Virtues, bestowed upon summoned heroes."
"Loyalty, Hope, Generosity, Justice, Fortitude, Temperance, Prudence."
"Each hero's Authority is meant to counter the corresponding Demon God of the Seven Deadly Sins."
…
A hundred years ago.
Greedy humans, unsatisfied with the resources of the Dragon Lands and driven by ambitions to unify the world, allied together, finding countless excuses to start a great war.
Previously, there had only been minor skirmishes at the borders, or human adventurers invading their territories, killing many demon realm creatures, and taking their bodies back to make potions, weapons, tools, etc.
Just like dragons, whose entire bodies were treasures, so too were some demonic beings in the Demon Realm.
Thus, the Demon Realm, unable to tolerate it any longer, launched a full-scale war against the human side.
And it was during that time...
A hero appeared again.
The heroes summoned back then referred to the dragon race as evil dragons, ultimately killing the Dragon God of the dragon race.
As for where those heroes went afterwards?
No one knew.
Some stories say some heroes took their honors, married village girls, and lived as nobles.
But old war wounds caused them to die soon after, leaving behind descendants claiming to be heroes to continue living.
Other heroes were said to have returned to their original worlds.
Some chose to retire to the mountains, declaring peace had arrived and their services were no longer needed.
But if war broke out again, they would return—such stories were meant to boost human morale while warning the demons of the Demon Realm.
Afterwards, the heroes became legends.
Until...
The great war a hundred years ago, when they summoned heroes again.
Each of the Seven Heavenly Virtues heroes grew stronger through battles, eventually threatening even the Demon Gods.
Why didn't they eliminate the heroes earlier?
Because the heroes never revealed their identities from the start. They posed as ordinary adventurers, fighting until they became powerful enough to claim the title of hero.
Additionally, each hero had top-tier mages and adventurers assisting them. With them banding together, killing a hero was troublesome.
Whenever a Demon God appeared, they would be targeted.
And so, that great war was like a living hell.
"As for me back then..."
When Chiyo spoke of herself, her eyes were filled with helplessness and anger. When she thought of a certain mage, she gritted her teeth!
If not for her, she wouldn't have ended up like this!!