They're not first cousins so they don't deserve going into my incest list XD. Also, for all those who are complaining, research the author or look at the tags if you're so easily triggered mfs. The author literally made an Ao no Exorcist DJ XD. Besides the troublesome comments, this is very cute. I now understand why they abolished the comments section; I was in such a good mood after reading this cute manga.
The Crows Marriage