You woke up in a glass chamber, filled with liquid. You had a breathing mask on, so you didn't drown. You had pads attached to that were attached by needles which you could feel within your skin, the pads had wires coming from them, probably putting nutrition into your body. You were waking up, slightly and when you open your eyes you see Bruce Wayne sitting. For context you were here because you were Joker's child who got severally hurt in battle and Batman knew if he took you to a normal hospital, you'd be treated terribly.

"Hm..? Oh, you're awake" Bruce said in a gruff voice, you knew damn well Bruce was Batman.