Nine months later
Kylin clenched her fists, trying to regulate her breath. "I won't fall this time."
In front of her, Rias stood with her sharp gaze and slightly upturned lips, as confident as ever.
She tilted her head slightly, her dark red hair flowing down her shoulder. "Really? Then prove it to me."
Suddenly, Kylin lunged forward, her eyes focused, determined not to miss even the smallest movement of her master. But—
Moments later, she felt a sharp blow strike her shoulder.
And then her knees hit the ground.
"Tsk."
Again?
Rias gently grasped Kylin's hair, pulling her head back slightly, and whispered in her ear. "I've told you countless times, if you think too much, you'll always be one step behind."
Kylin gritted her teeth. "But—"
"No buts." Rias pulled her hand away from Kylin's hair and leaned back. "In a real fight, if you think this much, you'd be dead by now."
Kylin clenched her fists and stood up. This time, she would succeed.
Her eyes locked onto the spot where Rias had left an opening for just a moment. She had to strike right there—
But just as she made her move, Rias's hand suddenly wrapped around her throat.
And a second later, she was slammed onto her back.
"This... impossible..."
Rias pressed her knee against Kylin's chest, leaning down over her. "How many times have I beaten you? Twenty? Thirty?"
Kylin narrowed her eyes. "You were lucky this time."
Rias laughed softly and looked at her. "Really? Then what will happen next time if luck isn't on my side?"
Kylin looked away. "I'll show you."
Rias tilted her head slightly. "You think you'll beat me? Darling, you're really charming. But let's be honest, when do you think you'll be strong enough to do that?"
Kylin felt something burning inside her. "I swear to you... when that day comes, you won't be able to defeat me so easily."
Rias's eyes narrowed. "Oh really?"
Then she suddenly leaned in, her face dangerously close to Kylin's neck. "If that day ever comes and you manage to knock me down... what will you do then?"
Kylin's brows twitched. "I'll slap you."
A moment of silence.
Then...
Rias started laughing.
"Oh, darling, this is my favorite part of beating you!"
Kylin angrily turned her head. "What?!"
Rias winked lightly and said, "Little threats. But... I want you to know that if you ever really beat me... I'll be eagerly waiting for that day."
Kylin's face blanked for a moment.
Then, rolling her eyes, she tried to pull away. "If you weren't my master... I'd really..."
Rias leaned in slightly. "Really what? Go ahead, say it."
Kylin gritted her teeth. "If you're going to knock me out, do it, or let's continue fighting."
Rias gave a pleased wink. "Ah, knocking you out? Let's save that for later, darling."
And at that moment, Kylin wasn't sure if her master's words were truly a joke.
Kylin took a deep breath.
She closed her eyes and tried to suppress the chaos in her mind. Space... Time... If I can merge these two, I can defeat her.
But...
In the next instant, Rias's presence shattered all her thoughts.
In the pitch-black night, blood-red eyes were locked onto her, watching with the patience of an ancient hunter.
Looking into those eyes... felt like losing oneself.
"What are you thinking, darling?"
Rias's voice, as always, filled the air with a silky softness. But Kylin knew that beneath that softness was a poisonous blade.
She froze time.
The only thing moving was Rias's eyes.
Kylin's step into the void bent space. The concept of time erased the reality beneath her feet.
Before she attacked, infinity trembled.
And a second later—
Her body burned like fire inside.
The call of blood. She had stopped time, but couldn't stop her own body.
With a single motion, Rias had boiled her blood.
Kylin gasped for breath, her heart constricted by a pressure that felt like a scream.
"Ah... such a shame. That was really a nice move."
Rias had vanished.
Kylin's mind echoed with her voice, still surrounding her, but there was no sign of her.
Suddenly, her back slammed into a cold wall.
"Freezing time is a nice trick."
A hot breath brushed her neck.
"But darling, I'm fighting you inside your mind."
Kylin instantly wanted to pull back, but her body betrayed her.
The command in her blood locked every move with an irresistible weight.
"I love that expression on your face."
A warm finger gently lifted her chin.
"You're not used to losing control, are you?"
Something inside her snapped.
Space cracked.
Rias's hand suddenly withdrew.
And a second later, Kylin pulled back, slicing through reality like a sword.
Blood droplets hung in the air.
Rias wiped the blood from her cheek with her finger. "Oh? That hurt a little."
Kylin clenched her teeth.
"Finally."
It was time to start the real fight.
The silence that echoed in the air was reminiscent of the moment before space collapsed.
Rias, wiping the blood from her finger with the tip of her tongue, looked at Kylin with a seductive smile. "Darling, you shouldn't have done that."
Kylin took a deep breath. The pressure in her chest was shaking her insides.
The level difference.
She could feel it in every cell. Rias's presence was suffocating her, leaving her breathless.
But this wasn't the first time for her.
She cleared her mind. If she didn't do this, she'd lose from the very beginning.
"What happened?" she said with a mocking smile. "Is it because the immortal blood hurts a little that you're looking at me like that?"
Rias chuckled. "It's just... it's so sweet that you really think you could hurt me."
And suddenly—
A blood-red flame erupted.
The fire consumed the air. The sky turned colored by the boiling steam of blood.
Rias shone like an empress of chaos.
Kylin narrowed her eyes.
Rias vanished quickly.
She had been expecting this.
Space around Kylin rippled.
By bending time, Rias left a false image echoing around her.
But—
A claw pressed against her throat.
"Too slow."
Rias whispered.
Kylin's pupils dilated. When?
But thinking about time had been a mistake.
In an instant, Rias's nails traced the edge of her neck.
Blood started to flow.
And Kylin jolted, a burning sensation coursing through her body.
Blood... was moving.
She knew this.
But for the first time, she felt it in her own body.
Her own blood... was being used as a weapon against her.
Rias slowly breathed out against Kylin's neck.
"Darling, do you still intend to keep fighting?"
The concept of lust trembled.
Kylin's mind blurred.
But...
Suddenly, Rias's eyes widened.
Because time froze.
And the next moment—
Lightning struck.
Kylin's body slipped from Rias's hand like a bolt of lightning.
It bent space in the air as it spun.
And—
She slammed a massive spear made of lightning and earth in front of Rias.
Rias responded with blazing flames.
The sky burned.
The air smelled of burned blood.
Rias, watching the hot droplets of blood leak from Kylin's open wounds, noticed something strange.
Her breath... trembled.
The smell of blood was pulling her deep inside.
This feeling—
Instinctive.
Her vampire side felt hunger.
Her succubus side...
Was feeling something else entirely.
Rias lifted her chin slightly and looked at Kylin.
Kylin clenched her teeth to clear her mind.
But it was too late.
A glint appeared in Rias's eyes.
And suddenly, the atmosphere changed.
All the mana sources... expanded.
The air trembled with pressure.
Something was happening.
And Kylin—
She felt it.
Rias slowly stepped back.
There was a smile on her lips.
But it was different from the ones before. It was... darker.
And then—
The entire sky turned crimson.
Fire.
Darkness.
Blood.
And lust.
All concepts intertwined.
And Rias's form changed.
Two sharp horns rose from the darkness.
When her wings spread, the air rippled.
Her beauty was like a whisper of death.
And Kylin... for a moment, forgot how to breathe.
But she snapped back immediately.
Because she had been expecting this.
This form—
Was real danger.
Rias smiled at her.
"What happened?"
Her voice...
That voice...
It echoed.
Its tone...
Was like poison seeping into her brain.
And then—
In an instant, Rias appeared in front of Kylin.
Her wings surrounded her like a cage.
And with a soft tone, she whispered.
"The smell of your blood..."
Her fingers gently lifted Kylin's chin.
"Truly... intoxicating."
Kylin's mind blurred.
But—
Her whole body jolted.
Because the concept of infinity trembled.
And everything suddenly broke free.
Space and time cracked.
Rias's expression changed.
Rias narrowed her eyes.
Something... was wrong.
At first, she didn't pay it any mind.
But the air suddenly changed.
The ground began to crack.
The sky... trembled.
And Rias' feathers stood on end.
This feeling...
"This is too much."
The power radiating from Kylin's body flowed uncontrollably.
Space warped.
Time started to move in fragmented pieces.
Rias felt the ground beneath her feet collapse.
Infinity.
For the first time... Rias truly felt it.
And for a brief moment, a voice echoed within her.
Run!
But—
Rias continued to smile.
Instead, she took a step forward.
And grabbed Kylin by the throat.
Kylin flinched.
But Rias bent her head and whispered.
"Hey... get a grip."
Kylin's eyes were blurry.
But Rias didn't let go.
Because if she did—
The world would collapse.
The air was darkening.
Time was rewinding, then rapidly leaping forward.
And Kylin's pupils blazed brightly.
Infinity... had gone out of control.
Rias knew what this meant.
But there was a question.
If Kylin couldn't stop herself...
Who would stop her?
A hundred thousand years...
For a hundred thousand years...
Rias had never been a true succubus.
Because she had a limit inside her.
And that limit was her greatest curse.
Her chastity.
As the word echoed in Rias' mind, a strange feeling enveloped her.
Anger?
No.
Shame?
Definitely not.
But—
A discomfort.
Because Rias had never liked the chain that limited her.
Even worse, she had never done anything to break that chain.
Because...
There was no one who could do it.
Now though...
A child.
A human.
And... her student.
She was pushing her limits, driving her mad.
But that also excited her.
Kylin was already dangerous.
What if her power grew further?
What if she really surpassed her?
What if...
Rias shook her head.
This wasn't the time for such thoughts.
But a strange feeling lingered inside her.
And that feeling was growing stronger.
Just then, Kylin took a step.
The scent of blood filled the air.
Rias' eyes instinctively narrowed.
Because—
This smell...
It's driving me crazy.
Rias unconsciously licked her lips.
When she realized it, she cursed herself.
But it was too late.
Kylin had noticed the change in her.
"What's with that look, Rias?" she said, laughing. "Or are you thinking of attacking me?"
Rias frowned.
"Don't be ridiculous."
But at that moment, there was a slight crack in her voice.
Weakness.
And Kylin noticed it instantly.
"But your eyes don't say that."
She took a step toward her.
Rias unconsciously took a step back.
Kylin laughed.
"Rias... don't tell me you're hungry?"
Rias gritted her teeth.
This kid...
Is she really mocking me?
But it didn't matter.
Because the scent was sharpening.
And the voices in her head were growing louder.
Taste.
Possess.
Subdue.