The hosts and sponsors of the games ensured that no violence occurred outside of the arenas. That didn’t mean they barred people from defending themselves. The short man had started things my slapping his shoulder and poking at him – that earned a response. Of course Lan Jue would not get in to trouble for that.
The surrounding Adepts didn’t dare trouble Lan Jue further. Some of them knew the short man, and knew that he was a seventh ranked Adept. Even still, he didn’t even have a chance to use his Discipline against the masked man. Eventualy he picked himself up off of the floor, and slinked away like a beaten dog.
The first day would have a staggering number of Adepts competing, so they had set aside a place designated as an Adept resting and waiting area. Once registration was complete, robotic assistants lead them to this waiting room and urged them to have a seat.