This reminds me of the theory in chapter 2 that said the demons were actually foreigners... they could have married into the village people and caused them to look like that... you know how Rena, Mion's family, Satoko and Satoshi and even sensei all look like they are not normal humans? while Ooishi and MC are your plain looking Japanese men... or it could be really something caused by the demonic blood because... i don't think there is any real humans with green hair and red eyes @_@

*I think i will stop reading the posts again, it seems that i got spoiled again and it's really unreal how i keep trusting /vn/ fat cuties just to get betrayed by them again and again ^_^*