[ Her question would sound so weird if Jyushimatsu wasn't weird by default. He'd seen things here that nobody in the real world would conjure in their wildest dreams as real and tangible. That's a pretty legit question to him right now.

His ear is still glued to the door, but he shifts his eyes on Ren. ]

I think they totally could! If people die and come back to life here then it'd make sense to have dead sharks turned into ghosts as well!