Resonance of Fate is a role-playing game that takes place in the future when the Earth becomes too poisonous to live on and humanity moves to the machine-city of Basel. It is a city built high up to the sky upon a tower-like structure. The story of the game focuses on Vashyron, who is the leader of the PMF (Private Military Firm), as well as two other characters named Zephyr and Leanne, who join Vashyon's group and take on missions from the citizens of Basel.
Years before the Arkham incidents, the neophyte Dark Knight finds himself the target of an open murder contract courtesy of Black Mask that draws eight of the world's deadliest assassins and a new criminal named The Joker.