Infinite Decryption: The Strongest Level 0

When mysterious monoliths crash onto Earth, endless Calamity Beasts pour forth, plunging humanity into war. After witnessing his parents' brutal deaths, Kael lives for one thing: revenge. Years later, he awakens an ultra-rare class, but his level is permanently capped. He soon discovers he can endlessly stack his stats by stealing his enemies' skills. Chosen as the protégé of humanity's first Transcender, Kael begins his relentless ascent to the top.