Kutley

War breaks out between the human race and monsters, and Lee Seung loses everything to it at the age of sixteen — his family, home, and happiness. He had always dreamed of becoming powerful enough to stop the remaining monsters in the world. One day, he awakens the ability to create multiple versions of himself called "replications". With his clones, he grows stronger every time. But will this new power bring him the happiness he desires? The revenge he craves? Or will it further ruin his life? Let's find out!

------+--
Check out my new fantasy book

Age of Beast Tamers and Exorcists. 

-----

Thx

Dual levelling: I level up with my clones

"Everyone, get away!" Seung shouted, sprinting away from the entrance as a blazing fireball rolled towards them.

With a sense of urgency, the clones dashed aside. The fireball smashed into the entrance's frame, causing the ceiling to tremble and large rocks to crumble downwards.

Seung's heart raced, sweat trickling down his face. 'The entrance is blocked!' The rocks tumbled over one another until the dark entrance was entirely sealed. He muttered, 'What kind of sensation is this?'

His eyes darted around the cavern, taking in the monster that dominated the area. The place was a wide cavern lit by orange flames that danced close to the walls, making Seung's skin feel like it was burning. The scent of singed flesh and sulfur filled the air, adding to the oppressive heat.

The Agent of Flames