I Have Opened the Apocalypse and Am Invincible in the Apocalypse

{Invincible, killing monsters and becoming stronger, the protagonist is not the Virgin, the system is a strong man} This extremely bad world pushed Luo Yan into the abyss. When he was desperate, the system came and his destiny changed. Luo Yan swore that he would never be a weakling again. He would use many weird and human corpses to pave the road to supreme invincibility.