to summarize my theory, I noticed the following things:
1. Amara has skins that are Western clothes (she's the only one that has so)
2. Amara, besides Claire, is the one who actually loves the MC
3.
4. the fact that if you go for both Oluchi and Amara in the same run, you'll get with Oluchi on the ritual night.
my theory was: that having an affair with Amara only would lead to an ending where she saves the MC from sacrifice and runs away with him.
unless I missed something, I was wrong, but I have to say, after that wonderful scene with Amara in the ritual night, not having such an ending is a painful waste. I feel NTR'd