The Strongest Assassin Returns with a Dual Class

At a young age, Kang Hyuk was transported from Korea to the world of assassins known as Katabia. Born without the ability to use assassination techniques, he trained under the strongest master of his era and reached the pinnacle of power through nothing but physical combat. However, without assassination arts to heal his body, years of endless battles destroyed him. He quickly fell from the top and lost everything. After his downfall, he was forced to kill even his own master. Just as he was about to be killed by the pursuers hunting him down, an unknown system called Caldeon returned him to Korea and granted him a new class: Engraver. Assassination arts are gone. Now, he wields engravi...