"I see. Those eyes really can detect some interesting things. The ability to destroy everything she sees… no wonder she can fight on equal footing with a Primogenitor's familiar."
After seeing Flandre attack, Giada's lips curved into a delighted smile.
The moment Flandre shattered the familiar's attack, she understood the nature of the girl's power.
No wonder she had felt a hint of danger from Flandre. If not for her own bloodline and strength, Flandre might have been able to kill her outright.
She suddenly realized that this younger sister was even more entertaining than Remilia.
If Ren hadn't seemed intent on making that first vampire the Fourth Primogenitor, Giada would've already considered manipulating things so the little sister could take the role instead.
After all, wouldn't a Fourth Progenitor named Flandre be absolutely fascinating?
She couldn't even imagine what level the girl would reach after gaining all twelve Calamity-Class familiars—and combining that with her broken power…
Giada was lost in excitement over Flandre's abilities, while Natsuki could only sigh at Flandre's attitude toward her sister.
"You… didn't you raise that child wrong? Flandre seems very enthusiastic about tormenting Remilia lately."
Natsuki tilted her head against Ren.
Recently Flandre's persecution of her sister had skyrocketed—especially during breakfast that morning…
That was practically social death for poor Remilia.
Ren only shrugged.
"It's not all my fault. Flandre already had plenty of resentment toward her sister. She's just expressing it now. Her ability was dangerous, so she spent her early years locked alone in a basement. People brought her food and toys, but she was always isolated. Wouldn't you hold a grudge too?"
"That's true… fate is cruel indeed."
Even without Ren explaining much, Natsuki could piece together their past.
It wasn't a happy story—especially for someone like Flandre.
Ren nodded slightly. Remilia's power really was the greatest irony.
She could peer into fate, she could influence the fate of others passively—yet she could never change her little sister's destiny.
Ren looked at the Primogenitor blood in his hand, then raised several crystalline cubes with his other hand.
His newly made Primogenitor bloodline crystals were far larger than expected, containing absurd amounts of energy.
A single piece in his hand easily equaled several dozen Nekomata bloodline crystals he had once fed Kuroka.
But that also meant… mass-producing them would be difficult.
Before them, flames surged from between Flandre's hands.
She plunged her right hand into the raging fire—and pulled out a sword of pure flame.
It was slim, but the length was ridiculous for someone her size. Any normal adult would struggle to wield it.
Yet Flandre held it with ease.
The moment she gripped it, excitement filled her eyes.
Bang bang bang bang bang bang bang bang—
"Destroy her! First Familiar!"
Zaharias's irritated shout echoed across the battlefield as the colossal ram resumed its assault.
This time, Flandre didn't use her ability. Instead, laughing loudly, she charged in.
"Hahahahahahaha! Awesome, awesome! You can still attack even after being destroyed? Then come play with Flandre!"
"[Taboo: Four of a Kind!]"
In an instant, four identical Flandre appeared.
"You must play with Flandre properly!"
"Don't worry, Flandre will be careful!"
"The ending is destruction… or death?"
"Be careful, big guy!"
Different emotions flowed from each Flandre's voice as the four of them launched toward the ram.
The Flandre facing the incoming barrage raised her head. Black-tinged magic swelled around her, bursting forth with destructive pressure.
The entire island trembled from the collision.
"Friend… aren't you going to help Flandre?"
Avrora looked nervously at Remilia, who had returned to her side.
Remilia waved a hand casually and messed up Avrora's hair while the girl whimpered helplessly.
"No need to worry. That's my little sister. I killed two familiars even with empty magic reserves. And that man thinks he can defeat Flandre with that level of control? Keep dreaming. A weapon's strength depends on its user."
She shot Zaharias a mocking glance.
Yes, Calamity-Class familiars were powerful. But they still depended on the controller.
A mere arms dealer should stick to doing business. Controlling a familiar in battle? Impossible. Even Flandre, with little battle experience, could crush him with ease.
Above them, the sky erupted in a rain of bullets as Flandre bombarded the ram.
Flandre's eyes searched for weak points, her ability fluctuating in response to the opponent's strength.
Like Ren had said—Flandre's power was nearly invincible against equals, but weakened when faced with someone far stronger.
Against someone at Yukari's level, she could find only a handful of weak points.
Against overwhelming boundary-level power, her ability was nearly ineffective.
"…"
The huge ram manifested countless gem crystals, forming a shield.
Flandre's bullets struck the barrier and were reflected back.
Zaharias's lips curled upward.
This vampire had startled him somewhat, but the First Familiar's defense and offense were absolute.
"Uwah!"
"So annoying!"
"Feel Flandre's Lävatein!"
"Everything—break!"
Flandre's clones narrowly dodged the reflected attacks. Dark magic swirled around Flandre as she glared at the shield.
She clenched her right hand.
Natsuki shut her eyes.
She could already imagine a thousand ways her chains might be shattered again.
But this time, the barrier didn't shatter fully—only cracked.
"[Taboo: Lävatein!]"
The four Flandre merged back into one.
Magic roared across the sword like rolling flames.
The crimson lotus of destruction bloomed.
With a single slash, the cracked shield was completely consumed.
The ram was devoured along with it.
Watching this, Zaharias froze in disbelief.
"How is this possible—"
Flandre's dangerous eyes turned toward him.
"Big sis said… you can't die, right?"
Zaharias's face turned ghostly pale.
He knew he was done for.