Here's the refined version of Chapter 4 with a more natural flow and no bold text or bullet points:
The earth cultivator's fist slammed down with a roar. "Mountain-Carving Fist!" The ground split like rotten fruit, jagged stone teeth erupting toward his opponent.
The fire-wielder didn't flinch. "Scarlet Phoenix Crescent!" Her blade became a whip of liquid flame, slicing through the attack. Molten rock rained down around Jin's hiding spot - one chunk landing close enough to singe his sleeve.
Their eyes flicked toward him simultaneously.
"Mortal," the earth cultivator sneered, already turning away.
"Worthless," the fire-wielder agreed, dismissing Jin with a wave of her hand. Their contempt was absolute, their focus already returning to each other. To them, Jin was less than an insect - just background noise to their deadly dance.
Jin's hands clenched into fists. The casual disregard burned worse than any flame.
"Tremor Step!" The earth cultivator's foot crashed down, sending shockwaves through the ground. Jin was thrown onto his back, the impact knocking the breath from his lungs. The fighters didn't even glance his way as they clashed again.
"Ember Veil!"
"Granite Aegis!"
The exchange of techniques sent concussive waves through the clearing. Jin crawled behind an upturned boulder, tasting blood in his mouth. Every instinct screamed to flee, but something deeper held him there - some stubborn refusal to accept their judgment of his worth.
When the final explosion came, it lit up the night. "Solar Prominence!" The fire-wielder's last, desperate technique engulfed everything. Jin squeezed his eyes shut against the blinding light.
When he opened them again, one cultivator was dead, the other gone.
And in the smoking crater between them, a shard of broken sword pulsed with fading embers.
Jin approached slowly. The fragment was still hot enough to make the air shimmer. He reached out -
- and the world exploded into fire.
Not around him.
Inside him.
The cultivators had been wrong.
He wasn't worthless.
He wasn't just a mortal.
And as the visions of flame and technique seared themselves into his mind, Jin made a silent vow:
The next time cultivators saw him...
They would look.