Well, this is interesting. Normally, the extras tend to be really uninteresting, but this one caught my attention. Judging by the number of wings he seems to be a former High-Ranked Goddess (maybe even a former AA). Come to think of it, we never saw what Nanashi was really capable of in battle. The only thing we saw was him one-shotting a Gray Demon if I recall well. All of his fights were effortless wins. Dunno, knowing this, it feels like he was quite underused in the story, to say the least (just like the whole Goddess Clan). Hopefully, he has his relevance in the sequel. This makes a part of me be more interested in the sequel, but the other part still doesn't know what to expect judging by the quality Nakaba delivered in the last two arcs of the series.