Call me out! Antumbra edition.
Prompts!
In the land of gods and monsters: Shin will be very happy in his home world, which is a fairly normal 2010's America. Visit the city, marvel at modern technology, maybe meet Shin in a cafe somewhere. Just... Maybe don't follow him to that mysterious building he keeps frequenting if you don't want to run into any more merry murderers.
The secret life of Shin: Castmate option. Eddie got to see Shin get snatched up by some sort of demonic... Thing. Then he returned half an hour later. However Eddie handles this, things go more or less back on track after Shin takes Eddie to see his furniture. After the adventure with the grave robber, Shin manages to stick around a little longer than he does in canon. Does Danny want to ask why Shin suddenly cares more about his brother? Do Zack and Ray have the pleasure of touring his floor instead of Eddie's? Feel free to hit me up for plotting.
I've been everywhere, man: The AU where Shin gets stuck in someone else's world and has to survive until he figures out a way back home. Maybe he'll curb his murderous urges for a little longer while he gets a tour of your place.
Lizard end?: The AU where Shin is stuck as a half void. Luckily for him, it doesn't get too much worse, but he has to hide the fins from the public and deal with that horror hunger. At least in his world he's already getting a steady supply of victims, but...
Anything goes: This is basically a wildcard option. Make up your own prompt or steal a meme.

flies in a million years later in a jet of flames
This whole affair was entirely utterly ludicrous in so many ways. Erika Miyashiro Wagner neither had the desire no time to be swept up in this imbecilic play at power she was trapped in. Once was bad enough, but twice—she wasn't naive enough to think the universe held only a handful of megalomaniacs, but this was pushing the envelope in being almost a carbon copy of what that woman had foisted upon her own world. She wasn't a woman (girl) of needless complaint though, as unhappy as she was being part of the conglomerate of other trapped souls here.
Or more accurately "souls" given one specific co-captive. Aside from a fiery glare, Wagner had not deemed it necessary to interact with Shin up until this moment. Revealing that they knew each other prior to this game was problematic for several reasons, one of which was that she was writing a loophole in letting him live even here. Non-contact was a course she was committed to staying until the effects of this week were announced. A curse which of course would manifest as Zero-state for Shin, she had guessed as much before she saw him seclude himself away from the group as a whole. (For herself the curse was simple yet effective, losing her powers and becoming a "normal" girl, retired not on the battlefield but because her blade had dulled.)
Even still, she was not about to leave him alone. The click-clack of her heels might sound familiar, even without the cursory roars of fire to accompany her. She can still announce her presence at least, because a Wagner does not knock like a commoner. ]
Shin, reveal yourself!
Someone get the fire extinguisher.
[ She can hear a hiss of breath from the other side of the door...
Until now, their lack of interaction had been a mutual agreement. She knows of his sordid history and he still vividly remembers the moment they met. The last thing he wanted was to have a fiery young lady gunning for his head on a stake.
The tables could turn on her now. He's more than observant enough to notice her own powers had been stripped away from her. He could easily lure her in, strike her down and--
What was he thinking?! If he let himself attack her through instinct alone, the blood on his hands would be way too obvious. He had to stay alive for as long as he can...
... He walks up to the door, but doesn't open it. ]
I'm here, but I wouldn't try prying open the door if I were you.
[ He has it locked from the inside, for one. ]
no subject
Pry? Doors open before me through whatever means necessary, but none of those involve prying. I am not a mere thief, or has the curse addled your head that swiftly?
no subject
[ Does she think of him as nothing more than a beast? Not shocking, but he resents her opinion all the same. ]
We have to worry about the trials too, in case you've forgotten. You kill me, you'd have to frame someone else if you don't wish to be executed.
... Likewise if I'm compelled to attack you. I'm not risking that possibility tonight.
no subject
And you insult me, if I aimed for your head it would have long ago been separated from your shoulders.
no subject
[ He hasn't forgotten how she almost killed him on the spot, ya know... Especially after the outcome. ]
... If you're not here to kill me, then what do you want?
no subject
[ Shin can take that as he wishes, but given how clear her words usually are, the last sentence is tacked on and clipped. It's easy to say too much under circumstances like these. ]
no subject
Like how it was in the Twilight, more or less?
no subject
I shan't repeat myself.
no subject
[ There's a moment of awkward silence from his side of the door. ]
... If this is like those other motives... We should be back to normal by the morning.
[ He doesn't sound so sure about that. ]