Yeah... can't say I agree with all the hate you kids are giving the princess. Yes, she did nothing after she learned about what her father did, but what was she supposed to do? She, like everyone else, assumed he was just an average person. An average person who was given items designed to get him killed. While at the same time he was abandoned in an area infested with high ranking demons. Under normal conditions there was literally nothing she could have done, because by the time a rescue party arrived, he'd already be dead. And, in all likelihood there wouldn't be any remains to recover. All she'd end up accomplishing is more death. Because the rescue party would suffer heavy casualties or be wiped out. She voiced her concern, but accepted inevitability. Which unlike all the fake bleeding heart royals featured in many stories, is a very realistic outcome for someone in her position.