Urban Cultivator Blows up the Whole Universe with One Punch

My name is Aqiang. I usually sell fish tanks and live a poor life with a meager income. Until one day, someone asked me if I wanted to live forever... I know, the opportunity to make big money is here... (The Queen Mother of the West's elixir of life, the miracle of Jesus resurrecting Lazarus, the golden apple of eternal youth in Nordic mythology...)