Since Madam Yan Meng didn't want to make their relationship and deal known to the rest of the world, she didn't send Lu'er or her people to accompany Eric to the venue in the open.
Still, Eric could tell that more than 6 civilian dressed guards were keeping him under their watch at all times. More importantly one of them was actually a peak Realm 4 evolver.
It was clear how much important was he to Madam Yan Meng at the moment, but that could be easily understood.
After all, the woman's life was in his hands, not to mention the importance of the Blood Rose she wanted to grow and improve.
Knowing and mentioning all of that, it would be weird if Madam Yan Meng did the opposite and did not attach him enough importance, that would make her a fool.
Eric was certain that the expert following behind him, most probably even had orders from her to save him in case the situation looked too bleach for him at the Arena.