What are JRPGs that are about the concept of human sacrifice?

No I am not talking about games that are about a character losing their humanity to gain an ability as rather what I wanted to discuss for today’s topic was RPGs that get into some dark stuff such as the concept of human sacrifice where the premise revolves around villains creating powerful tools by using humans as sacrifice material as the more they do it, the more powerful their creatures become.

Sorry if that came off odd sounding, but basically I just wanted to see if I could have a discussion on RPGs that use such concepts to show how dark they can be in storytelling as sometimes an RPG that comes off as innocuous can get dark in atmosphere very quickly as there are games that don’t stay saccharine for too long.