It was Madera or Madara, and he could end up being Credo, but only if everything about Credo was a lie and he isn't actually dead. Seeing how Madara didn't risk meeting Yuuji even after he annihilated his own Lab branch and expressed his differing ideals and priorities, since Yuuji would...
Tbh so far they haven't personally warranted that much caution, unlike their gizmos, and the new intel on the plan Credo has been dropping is somewhat helpful. Still probably would've been better for Yuuji to actually hide his magic casting attempts and nuke the big gathering spot before it got...
Could've at least stuck his hand inside the robe or a pocket, instead of so blatantly conjuring up a magic circle. There's probably some sixth sense involved, but he could at least try to hide it.
With his whole self improvement and stealing moves deal, I fully expect him to be capable of pulling off the vampire mist form if Alpha could do it, especially after she did it in front of him. And it wasn't just Alpha too.
I get that he could've experienced even more extreme abuse when it comes to the working hours during the workweek, but that line is just so, so insanely retarded.
The Lab got presumably 140 hour work weeks (most definitely no weekends compared to the probably undercut, but still present...