It turns out that it was the old man, Hage. Out of everyone Rean invited, Hage was by far the weakest and in the worst shape in terms of cultivation. But then again, Rean had to admit Hage was the guy he liked the most and wanted to appear by the gate. Naturally, it delighted him to see Hage there. "So you came, huh?"
Hage shrugged his shoulders, responding, "Well, I won't lie. Your offer triggered all the alarms in my mind. I'm pretty sure whatever you have to ask me for isn't something I'll like. However, who cares? I probably can't live for more than 20 or so years with my current cultivation, so I'm already at a stage where I have nothing else to lose."