Member of the Joestar bloodline in an alternate universe where Stands are named after video games. Jonas is a young and resourceful fighter with a deep sense of justice and a keen intellect. Jonas's Stand is named Deus Ex, Deus Ex is a humanoid Stand with a futuristic, cybernetic appearance, featuring sleek metal armor, glowing blue circuits, and a visor that can change colors depending on its mood or the situation, Augmentation Control, Reality Hack and Conspiracy Unveiling.