Meanwhile, deep beneath Arkham City...
"What exactly is going on?"
A pretty young woman with brown twin tails sat before the command console, staring anxiously at the screen. As she watched the image of the mechanical giant on it, unease and agitation flickered in her brown eyes.
In fact, the mechanical giant confronting the crab Mecha on the screen had been created by the force behind her. As the family that controlled and ruled Arkham City, they had always been fighting against Black Sanctuary. This mechanical giant was a legacy her grandfather had created for her to use against Black Sanctuary and protect Arkham City.
However, this Mechanical God called Great Demon Slayer had never been activated. Activating a Mechanical God required a qualified Magus and a supreme Grimoire. The young woman had originally planned to hire someone to search for that legendary Grimoire, but before she could act, her subordinates informed her that Great Demon Slayer, which had remained dormant in the underground base, had suddenly vanished—only to appear on the surface...
In other words, it had been activated?
"Who? Who is piloting it?"
"I don't know. There has been no response at all from our attempts to contact it."
"...Damn it, how could this happen... Wait, what is that?!"
Just as the young woman racked her brains over how to deal with the situation before her, she suddenly saw the mechanical giant on the screen begin to change.
Pitch-black liquid, like oil, seeped from the gaps in the giant's body. As the liquid poured forth, the armor covering the mechanical giant twisted, shattered, and fell away. In the blink of an eye, the mechanical giant standing on the ground was swallowed whole by a Dark Marsh, like a melting wax figure.
"..."
The sight left the young woman