System Awakening: I Became Emperor by Picking up Trash

Also known as "System Awakening, I Become the System's Power Bank" System, fast upgrade, decisive killing, easy and funny Others rely on heaven and earth treasures to cultivate immortality, but Shen Zian relies on picking up rags to recharge his system! A brick shot through the three realms, and the salted fish system actually made me the most ruthless person in the fairy world? Who says salted fish can't turn over? I want to pick up rubbish and become an emperor, destroying this world of immortality with one brick!