I still think the darkest moment in this game is when Ricca decide to kill the bandit. She question is god even exist, Do god want her to kill those bandit. And she gave up, she kill them, the camera slowly zoom onto her face with blood, she doesnt care about anything anymore, she just want to save her sister even she not pure, not worthy as a holy knight. And that part of story only good because of she being r*pe, she question herself, she doubt herself.
Im not defense the r*pe but Im defense the way that the dev use the r*pe to advance the story, to build her character, some game just "oh she being rape" and nothing matter after.