Oni ga Deru ka Ja ga Deru ka (complete by ch)

alternate Japanese name "Oni ga Deruka Hebi ga Deruka" English names "Out Comes the Devil, Out Comes the Snake" ... "You Never Know What Might Happen" ecchi comedy drama supernatural harem romance slice-of life a young guy just finishes middle school ... and has to move out in to the country to where his mother used to live he gets introduced to a girl he is supposed to marry ... but finds out she is not what he thought she was ... she is not fully human and when he tries to run away, he gets stopped by a huge cow attacking him O_O O_o https://www.mangaupdates.com/series/9vatftr/oni-ga-deru-ka-ja-ga-deru-ka