User blog comment:B214/Talk About What You Want! 3/@comment-24098614-20141127075211/@comment-24421137-20141127123048

@B214

Should have known that this was a trick. -_-

@Otaku

Just put it like this Otaku, Saji's relationship with Vritra is like the relationship with Issei and Ddraig. Vritra is Saji's mentor basically. Also I guess for a lack of a better term you could consider Vritra as a good evil dragon, as he has yet to actually display any evil intent that I can remember. There maybe some evil in Vritra, and Saji probably only has the good part of Vritra's soul, which could explain why Vritra hasn't shown any evil intent, but right now no there is no cause for alarm about Vritra turning Saji bad.