Naranu is a tribe inspired by the game industry layoffs.
It's a tribe obsessed with usefulness, be it being useful, or judging others to be useful. It also strives to keep their population at a certain number while keeping only those they deem most useful, so they practice the "purging".
These concepts are part of 'The Sound', in which players are given a choice to acquire a few lost Viols as a side quest. While there are varied ways to prove their worthiness, stolen Viols give a Naranu the golden ticket to be accepted as a special one of the tribe. In this case however, the sheep is the rightful owner of his own Viol. Perhaps, there is a way to take it from him..