Somehow I don't think Hagi would make a very agreeable groom for Diva, if Saya was indeed killed...

Who were the fast dudes in this episode? They had the vampiric super speed, but apparently they were lacking information (or simply wits), as they seemed to lost to the chevalier so easily, yet they obviously thought they could beat the dude. Were they some prototype soldiers created by the Red Chield?