Ingvild Leviathan is a purple-haired girl with human ancestry, a descendant of the First-Generation Devil King Leviathan. She suffered from Devil Sleeping Sickness, falling into a century-long slumber at age 17, and later miraculously awakened due to the Sacred Gear on her body.
However, that awakening would normally take at least another year and a half or two years. She possesses the high-tier Sacred Gear, 'The End's Emerald Sea Chant'.
Through singing, she can suppress or inspire dragons, and also control the ocean.
She could be said to be the only conscience of the Leviathan clan, and her Sacred Gear is highly compatible with her bloodline.
After all, the Leviathan's original power is control over the sea, and their magic characteristic is known as the 'Tail-Dropping Sea Serpent Dragon'.
Coupled with a Sacred Gear that controls the ocean, she could become a Devil King-level powerhouse after awakening and training for some time.
Of course, this isn't the most important point.
The most important thing is... Ingvild is a beautiful and kind sleeping beauty.
The kind that perfectly matches Rias's XP.
Having too much fun with her parallel self these days, she almost forgot about this.
Another round of 'training' a cute girl filled Rias with intense interest.
With a thought, Rias arrived at the place where Ingvild was sleeping.
There was some kind of protection around her; it was her Sacred Gear, 'The End's Emerald Sea Chant', protecting her.
Even so, this protection had its limits.
After all, it wasn't a defensive Sacred Gear, and Rias easily bypassed her protection.
Gently stroking her hair, Rias softly said, "Wake up."
As if her words possessed magic, Rias's voice contained the fundamental truths of heaven and earth.
The sound echoed in her ears, penetrated deep into her heart, and then pulled her consciousness upward.
Soon, Ingvild's eyelashes fluttered.
Then, she slowly opened her eyes.
Her eyes, seemingly containing the vast ocean, and the bloodline of a true Leviathan, exuded a hint of enchanting charm.
"Welcome back to this world, my sleeping beauty."
Rias chuckled softly.
"You are..."
Ingvild looked at Rias, a little confused.
Where... am I?
"Ingvild Leviathan, you contracted Devil Sleeping Sickness and have been asleep for a hundred years, only now awakened by me."
Rias said, extending her hand, "Let's leave here for now and observe this unfamiliar world."
"A hundred years..."
Ingvild was somewhat astonished, but seeing Rias's outstretched hand, she quickly reacted.
Taking her hand, Ingvild stood up.
Although she had slept for a hundred years, she still possessed the Leviathan bloodline. She only felt a bit of physical fatigue and a slight mental emptiness.
"In that case, my family and friends also..."
After getting up, Ingvild recalled Rias's words, feeling a sense of unreality.
"Yes."
Rias said, "Unless your family and friends became devils, they would have passed away a hundred years ago today."
"My name is Rias, Rias Gremory. To avoid confusion with the other Rias, you can also call me Crimson."
Not letting go of her hand, Rias led her, slowly walking away from here.
"I'm Ingvild."
Ingvild also introduced herself, then didn't know what else to say.
With a slight thought from Rias, the two instantly traversed a long distance, returning to their usual play area.
They strolled leisurely for two hours, with Rias introducing her to the world's developments throughout.
Skyscrapers and an unprecedented bustle left Ingvild feeling bewildered.
She found it difficult to adapt to this era.
Or rather, she didn't even feel real in this era.
Dazed, she didn't know what she was doing.
It wasn't until Rias brought her to the beach and she saw the other Rias that she blinked curiously.
"Who is she?"
Rias of this world looked at Ingvild, an unreadable expression on her face.
Where did this one abduct another great beauty from?
"Ingvild Leviathan, a descendant of the Leviathan clan, who has been asleep until now due to Devil Sleeping Sickness."
Rias briefly introduced Ingvild's identity, then said, "It's best if her identity isn't spread."
"Leviathan... I didn't expect the Leviathan clan to have other descendants."
Rias of this world paused, sighing with emotion.
She naturally knew the trouble that came with the Leviathan identity, but which of her peerage wasn't a troublesome individual?
Moreover... this identity was perfect for becoming her peerage.
Thinking this, Rias of this world couldn't help but lick her lips, looking at Rias.
And Rias responded with a look, signaling for something special later tonight.
The two communicated with their eyes, then reached a consensus.
Meanwhile, Sona pushed up her glasses, a peculiar light shining in her eyes.
She was a little worried if her sister would be affected.
But thinking about it, it was impossible. Even a Leviathan couldn't affect Serafall's current position.
Otherwise, wouldn't the Old Satan Faction have long since reclaimed the Devil King's throne?
"Hello."
Ingvild showed a gentle, yet slightly empty expression.
That ethereal aura even influenced Sona and Rias of this world, significantly increasing their goodwill.
And, it made them feel a little sorry for her... both thought.
Afterward, Ingvild spent the day with them, but compared to the others' joy, Ingvild remained immersed in emptiness.
What kind of experience is it to wake up to find all your family and friends gone, leaving you alone in an unfamiliar era?
Although Rias was a Transmigrator, she didn't quite understand.
After all, Transmigrators don't have family or friends before transmigration.
However, even without experiencing it, one could understand that it must be very difficult.
She spent the entire day in a daze.
Even watching Sona and the others play, she alone felt out of place.
Then, night fell.
Rias and Sona's peerage returned to the hotel they had booked, physically and mentally exhausted from playing.
In Rias's room, the two lay on the bed, chatting idly.
"Another pleasant day..."
Rias sighed.
"Yes, but..."
Rias of this world hesitated slightly, asking, "What are you going to do about Ingvild?"
"What else can I do? We'll see."
Rias shrugged, "I don't even need to ask to know what you're thinking. You want to take her as a peerage, right?"
Rias of this world looked a little embarrassed.
For devils, collecting powerful peerage is an instinct.
"I wasn't talking about that..."
Rias of this world said, "I can't understand that child's feelings, but... are we just going to let her be?"
"Then I'll go keep her company?"
Rias showed a joyful smile.
And Rias of this world couldn't help but pout.
Finally, after a slight hesitation, she made up her mind and said, "Then go."
Anyway, it's just comforting her.
Nothing special should happen, right?
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