71 Alchemist / 8.5 : Old philosophy new lies

Everyone ate in silence with their heads down. The only sound you could hear was the cutlery. Huang, Zihan, and Yinglun looked at Eden thinking he would feel awkward too but he was eating leisurely. Huang's eyes flashed with disdain, not only does the entire staff think Eden is the leader but he is even sitting at the head of the table. They all looked at the doors when someone came in. Yan walked to them and apologized:

"Hello, I'm sorry to be late my brothers needed me on a project."

Zihan smiled and said:

"It's okay have a seat."

When Yan took a seat next to Yinglun they were surprised to see that there was already an empty plate waiting for him like he was expected. They looked at Eden wondering how much of their life he knows. Yan eats dinner with them every night so they were expecting him but how did Eden know?