User blog comment:B214/Talk About What You Want! 3/@comment-24098614-20141127075211/@comment-24098614-20141127115547

I remember that it was mentioned since Vitra was originally a Evil Dragon, and usually inside those Sacred Gears the soul of the Dragon inhabits it, and there was a chance of the soul trying to take control of Saji because at the time he didn't have the other parts of Sacred Gear but it is hinted that Vitra is a Evil Dragon, and the souls of Dragons are powerful to control the mind of a Devil ike Saji and Vitra is not a weak Dragon as you know.