Global Class Change: Shadow Assassin, I Am Death Itself

[Spiritual qi revival + high martial arts + the Dark Abyss + no female lead + leveling up + a different world of universal class advancement] Spiritual qi has revived in this world, and humanity has entered an era in which everyone can choose a class. The Dark Abyss is encroaching, and monsters are running rampant. Humanity fights back against them, with one generation after another joining the battle. Only by becoming a class-advancer, leveling up, and growing stronger can you stand at the pinnacle of the world! In his previous life, Su Hang was a top assassin. After dying and transmigrating, he discovered that he had become an assassin once again. In this world, assassins are considered the lowest of the low and looked down upon. However, Su Hang discovered that his assassin class had a unique hidden trait: [Can Advance]. Facing betrayal by his family and the contempt of those around him, Su Hang rises step by step from an unknown assassin to a Reaper who strikes fear into everyone's heart! [You prowl the darkness, killing without a trace!] [The lives of all things in this world are yours to command!] [You are the very embodiment of the Reaper!] [You are the Reaper!]