Seems like they're preparing a new part of Time Temple.

holy crap demon wings are huge....is that the mount version?

These are the effect of Metamorphosis, you can't have wings like that, it's just an edit with the skill effect. :O

J has the gun and that pose, because he was spying on Demon Slayer destroying everything in Leben while trying to escape, then saved him. He was trying to investigate things there.

That little girl is General Orca. She's a boss in Mercedes storyline, she's a weakass. :x
So i don't see why she's a general, it's like putting the puppeteer in there, or that giant. :X