Under the surface of the bustling city, there are countless darkness and secrets hidden. In the underground world, the "Netherworld Palace" is like a sleeping giant, controlling huge power and resources. Its leader, "Pluto" Qin Ye, makes all forces frightened. However, a family tragedy five years ago caused Qin Ye's life to undergo earth-shaking changes. The Qin family was destroyed, Qin Ye was seriously injured and fled, and his sister Qin Xiaoyu was also missing. In order to find out the truth and protect his sister, Qin Ye rose step by step in the underground world and became the supreme "Pluto". Now, he finally received the news about his sister and decided to return to the city. A thrilling journey of revenge began.
