[ I'm not threading out all the fight stuff but here's a quick recap of what Eren was involved in, so feel free to say your character met up with him/was saved by him/remembers him from the memory share and is like "oh no it's this guy," or whatever else strikes your fancy. ]
He gets a tattoo of a bird just above his heart. He gets door creation and retrocognition powers. Nothing bad can possibly come from a guy with too much power and a LOT of weird time/memory stuff having access to psychometry. Don't worry about it!
For the Waiting in the Shadows mission, Eren will use whatever he can, including a darkness ribbon weapon, fire powers, and he can either be a titan or a dragon. Take ya pick.
Eren can smash a hole in the wall, use his door creation ability, wrestle a big shadow blob as a titan, whatever you'd like to assume you saw him do, I am probably down for it.
I'm not dealing with any character death for this event ftr.
EPILOGUE
Afterwards, Eren takes the airship back. Why wouldn't he? He enjoys flying anyway. Somewhere along the line he lost his shirt, so he just has an open jacket. This isn't really unusual for him, but it does put that tattoo in plain view. The bird is sometimes in different positions, since magical tattoo creatures are wily like that.
He hangs out near the spa, curious but hesitant. Convince him to try out a massage or facial or whatever else you might do at a spa on a luxury airship.
He can also be found at the restaurant, or get roped into a game (dealer's choice). He tries darts, but he's not all that good at it at first; he gets better as he keeps at it, realising what the trick to balancing the stupid things is. Play him, give him pointers, whatever.
Eventually, he just goes out to the deck. He's an absolute master of the thousand yard stare, which can be weird or unsettling. He might not notice company right away, so feel free to snap him out of it!
eren jaeger | attack on titan | summer | folkmore crau
EPILOGUE