Vergo... maybe..
Monet.. no. no that's pretty well established, she's dead. In fact, she's very dead.
Though when it comes to Punk Hazard Arch I must admit that, first you had that gass turning people into stone, and it was so horrible, which made it so cool, just the visuals of the stone landscape in the anime was so bloody cool!
And then came. "Nooo, they didn't die at all, they were just covered in this stone thing, you can break it like an easter egg and they are just fine inside."
BULLSHIT! .... glad Ki'omon didn't die though... that would just have been sad having Momo there at last and just go.. nope, sorry kid. Your dad did his best, but.... he would make an excellent bird bath! Always look on the bright side!