He's in his human form at this point-he looks around and realizes the club is completely empty-no people-and no sign of Bakugou either.
"W-wait..."
His ears are perked up, looking for noise-
I-I was gonna make it a trap but ok...
Lukas hangs back for a bit-but then his curiousity gets the better of him, just like it always does, and he quietly sneaks upstairs, blending into the crowd
He looks around for him-he's upstairs at this point
"Hf-"
His eyes widen