A series of explosions blasted, but despite that, it could be heard that the shadowy monsters weren't actually going up the stairs fast enough. Rhode reckoned that was since they didn't even consider boarding the elevator. Well, it wasn't too surprising since one wouldn't be particularly interested in two big metal doors if one weren't aware of the existence of an elevator.
Similarly, if it weren't for Rhode, perhaps Catherine and Little Five might not even consider using the elevator earlier. Meanwhile, the enemies pursuing them seemed to intend on relying upon their feet to climb the building that was hundreds of meters tall. When Rhode heard the explosions, he was slightly tense.