Because this country claims to have the miko, the other countries hunt beastman for beeing slaves and in that way improving their military power. Because as long the Miko believes everything is fine there will be no divine punishment.
And these beastman who arrived got attacked and live there peacefully. Then the father vanishes who is captured and tortured to death by this other country (to learn the position of their village which he didnt tell) and after that the search party of many people from the village vanishes too (most likely captured too). Shortly after that her OTP goes out searching and vanishes too.
Then she goes out and mets an "exiled" princess and so on.
Like you see the typical drama because the author realized that she is stuck at this village and wont leave it. Because he didnt planned for that he pulled such a thing. Just basically killing half of the village and her new "family".