Izana07

In a world where dungeons loom like dark secrets and monsters stalk the land, Rem’s awakening shattered the status quo. A surge of raw power flooded his veins as the Monster Monarch System bound itself to him, unlocking a terrifying potential. 
Each heartbeat echoed with the promise of countless souls waiting to be absorbed—skills, abilities, and monstrous strength ready to be claimed.
Fuelled by an insatiable thirst for power, Rem set out on a deadly quest, driven by one singular goal: to rise above the chaos and stand at the pinnacle of the world. With nothing but the deadly abilities granted by the System, and a burning will to crush any who dared stand in his way, he carved his path through savage lands and ruthless mages.
The hunt for strength never ends. The battle for supremacy has only just begun. Rem’s eyes are set on the throne of the Monarchs, and the Monster Monarch System will ensure nothing stands between him and his destiny.
The grind was eternal...

The Monster Monarch System

Of course his opponent lifted an eyebrow at his words.

'All-out? He was using every trick under his sleeve during his earlier battle with Aegi,' She thought, 'Unless… he has gotten some new techniques,'

Rem's confident aura was enough for her to put her guard up, he hadn't even exhibited this much confidence when he was facing Aegi but he was doing so right now and it felt extremely unnerving.

Rem stared at her and immediately assumed a combat stance, his fists glowered with soul energy as he assumed his positioning and his eyes radiated his soul energy – he was completely prepared for the fight ahead.

'Or maybe he's bluffing,' She realized, 'And this is just a ruse to confuse me,'

A Demonic Medium (Part 1)