Infinite System Inheritor Return From The Abyss-Chapter 370 - 368: Backlash

Seojun rushed in again, swinging his scythe upward. Yoora leapt back and used her chains as anchors, throwing one end into the ground and pulling herself upward like a grappling hook. In midair, she spun, swinging both scythes in wide arcs, forcing Seojun to retreat a few steps.

"You're better than I thought," Seojun muttered, eyes following her movements carefully.

Yoora grinned, twisting midair and planting one scythe into the ground again. She launched herself sideways, flipping, and used the momentum to bring the other scythe crashing down at Seojun like a falling guillotine.

He blocked, sparks flying again, and immediately countered with a swing to her midsection.

She caught the blade with her chain Then the battle changed.

Yoora couldn't fly—but she made it seem like she could.

She launched her chain into the ground again, using it to bounce up. Then again, to the left. Then upward. Every time she used her chains like stepping stones, they flung her through the air with more speed. She twisted and flipped in midair, her scythes dancing in circular motions, cutting through space like red wind.

Seojun floated higher, calmly watching her movements, and then met her midair with a fast strike. They clashed scythe to scythe in the sky, Yoora using her weight and spinning momentum, while Seojun calmly parried with small movements and perfect timing.

Their blades sparked again and again—Yoora coming in wild and fast, Seojun staying calm and precise.

She slammed both scythes together, locking them around his from both sides like pincers, and tried to pull him downward—but Seojun let go for a moment, vanished in the air, then reappeared behind her with his scythe swinging.

She twisted and blocked, but the force sent her flying downward.

She threw a chain into the ground just before impact and slowed herself, flipping and landing in a crouch, cracks forming under her feet.

Then she stood again, scythes spinning beside her, and looked up.

Seojun descended slowly, his scythe resting against his shoulder. Her pink hair floated unnaturally. Her breath was ragged. But her eyes were still full of fight.

As the two stood facing each other—dust swirling around their feet

Then—

[Warning: Host, the energy inside the Yoora is destabilizing. That unknown liquid… it's starting to backlash.]

[Her body is rejecting the force—it wasn't made to hold this much. Prolonged use will tear her apart from the inside.]

Seojun's smile faded slightly.

He looked at Yoora again. Her hair was still floating unnaturally in the air like it had lost weight. Her eyes were glowing with a pale red hue. Mana swirled around her like a storm—but now it felt different. Wild. Unfocused. Not controlled anymore.

Yoora lifted one of her scythes and slowly dragged it along the ground. Sparks flew with each step she took. Her breathing grew louder—like she was gasping, but also growling at the same time. Her shoulders trembled.

And then she screamed.

Her voice echoed through the Ethereal Grounds like a beast's roar. The mana chains around her writhed on their own, twisting in wild shapes like serpents without a master.

Her feet moved before her mind could even catch up. She leapt forward with explosive speed, much faster than before, her twin scythes spinning wildly in her hands.

Seojun barely raised his scythe in time.

Her first strike slammed into him like a meteor. He slid back, boots grinding against the ground, his scythe vibrating from the impact.

[Her consciousness is starting to fade. She's not thinking anymore. She's fighting on instinct. If this continues… her body won't survive. Her mana circuits are cracking.]

Yoora charged again—this time on all fours, using her chains as limbs, sprinting like a creature rather than a person. She jumped, spun in the air, and brought both scythes down like spinning blades from above.

Seojun blinked away and appeared behind her, but Yoora somehow twisted midair, slamming her heel into his side before landing. Her movements were getting faster, more brutal—but also more reckless.

Seojun muttered. "She's completely losing herself."

Yoora's chains shot out again, stabbing into the ground and pulling her forward at inhuman speed. She slammed into Seojun, fists flying. Not even using her scythes now—just raw punches, backed by the monstrous force of mana-formed arms.

Each blow sent shockwaves into the ground. The earth cracked beneath Seojun's feet. He blocked with his forearm, ducked, and twisted, but the pressure was building.

[Host, she will die if this continues. That body is not meant to handle berserker-level mana. She's burning her life force.]

Yoora screamed again as she rushed forward like a wild beast, her mana-filled arms swinging with great power, her steps crashing on the ground like thunder, and her long chains slamming the ground behind her, moving like they had minds of their own, but even though her attacks were powerful, they no longer had direction—they were just wild, fast, and painful, like a storm that no longer cared who it hit.

Her scythe spun wildly as she threw it like a spinning blade, and right after it left her hand, she grabbed her other scythe and followed behind it, using her chains like ropes to pull her through the air, even though her body looked like it was shaking and starting to fall apart from the inside.

Seojun didn't speak anymore.

He moved.

He vanished in a blink, reappearing just above her flying figure, catching her scythe midair, and gently twisting his body as he floated down, and then in a smooth, fluid motion, he appeared in front of her, face to face.

Yoora's eyes widened in shock when she saw him there, even as she tried to swing her remaining scythe, but it was already too late.

Seojun's voice was calm but cold when he spoke just above a whisper, "Sleep."

Then, before she could blink, his scythe struck—not with full force, but with a clean, strong hit to the back of her neck, a strike aimed to knock her out, not kill.

Yoora's body stopped moving in midair.

Her scythe fell from her hand, her chains loosened and dropped down like limp ropes, and her eyes slowly closed as her breath caught in her throat.

Her body began to fall.

But Seojun quickly reached forward and caught her gently in his arms, slowly lowering them both to the cracked ground where the fight had just ended, the dust still floating in the air, and the ground still shaking a little from all the power she had used.

He looked down at her face, seeing the blood dried on her cheeks, her hair floating slowly back to normal and her skin becoming pale and cold from exhaustion.

[System Notification: The backlash has stopped.]

[Vital signs are stable—but she will need rest and treatment.]

Seojun sighed deeply, brushing aside a bit of dirt from her forehead, and for a moment, he just sat there on the ground, holding her unconscious body in silence as the last traces of her berserk power vanished into the air.

"She's really reckless…" Seojun muttered softly, looking up at the sky of the Ethereal Grounds that now felt calmer, "but she's strong. Too strong to die because of her own pride."

He stood up, still holding her, and began walking through the cracked earth of the battlefield.

[Host, shall I prepare a transfer back to the academy?]

"Yes," Seojun said quietly.