Best series ever. I've got DDS and Lucifer's call... I reached the half of the game on DDS, but I don't liked it as much as Lucifer.
DDS got a demon/skill system that is is not THAT good. All characters can get the same magics, so even being up to you to decide how you will build them, this system could have been improved.
Someone here have already played Kuzunoha Raidou? I'm gonna get it this month to play.