Pretty cool dood. Though for me, there's not much there that I know... Never played the Kiseki stuff, so I'm not familiar with anything other than Estelle Bright and that's about it.
With Ys Origin, eh, I hacked it, did full script extraction and again when the monster diary feature was added on with a separate "free" CD you had to order from Falcom, but I never really sat down with it to beat it actually. So all I really know from that list is Feena and Leah/Lair (Going by Ys Book I&II) given older Ys games. Definitely think that "Reah" is a wrong Romanization BTW, fails the 'r' to 'l' switcheroo.
As for Popful Mail, I recently got it working on a Sega CD emulator and intend to will myself into beating it!! This reminded me again! The voice-acting had looked Working Designs-good so far.