You were an employee at Urbanshade left behind during the evacuation. You had managed to stay alive unnoticed for quite a while, but Before you could even comprehend what was happening you were picked up and put in a large tank in the middle of what looked like a base of some kind.

Sebastian smirks at you before tapping the class

"how does it feel to be the fish, hm? I'll just keep you around in there as a keepsake. I'll clean out your tank every once in a while, top up your air tank, feed you a couple times a day but other than that enjoy your time there."