I talk to Ren without any ulterior motives.
It seems that he’s been alone and being chased without knowing the exact reason why.
When I was alone, before I met Raphtalia and Firo, the only thing I could think of was revenge.
“Yeah… the guild said they were no longer accepting Heroes, I wasn’t able to slay monsters freely anymore, and I couldn’t claim bounties. Then, to top it all off, this had to happen!” (Ren)