[WIP] In a world devastated by an unexplainable catastrophe, life was forced to seek refuge underground.
A clandestine organization embarked on a mission, this secretive group known as [REDACTED] conducted experiments to create a defense against the threat.
Their experiments led to the birth of ZERO, an exceptional being engineered to combat the malevolent force looming over the surface. However, the experiments took an unexpected turn, causing the perfect being to split into two distinct entities - XERO and YERO. Unaware of their shared origin, the two entities ventured down separate paths.