The Astropolis Memorandum was an ancient artifact that helped the world prevail against the Shadow Lord. After the Hero and his Acolytes successfully defeated the Shadow Lord, the world was granted peace for a decade. That's until the Hero suddenly turned against the world with unknown ambitions.

The story focus on a pair, Neila and Simonn. With the sudden betrayal of the Hero, the world where they wanted to live a normal life turned upside down. Demons and the Acolytes re-emerge to threaten their livelihood. How will the two survive the threat of Demons and Heroes teaming up against the world?