Oyi is in Irun Akoko, Ondo state, Nigeria and there is no single church there. This should be a challenge to pastors. There is a reason there is no church and the reason is captured in this post by a journalist, Folajogun Akinlami who posted it on Facebook. Read her below.
... Have you ever heard about the people of Oyi, in Irun Akoko. They are the reason why so many people are scared of Irun Akoko.
The people of Oyi believe it is a crime not to be a witch. Infact if you are not a witch, you are a bastard. There might be churches in other places but there is not a single