t's still a tragedy. Rood "died", but because his soul was tied to the DK, he was able to live again. Before that, the big demon died because he was chewed up by the humans as a source of magic. The human DK probably died trying to save him. Kiel's childhood past was tragic in a sense that he was bullied and allowed his life to be like that. Then, he lost his mom, but gained a brother. Unfortunately, Rood wasn't cared well by his aunt and uncle. So sad.
All the slaves, criminals, innocent adults, and innocent children who died by being the Tower's experiments were all victims. That is a huge tragedy right here.
Tragedy comes in all forms. Doesn't always have to be death. Doesn't always have to relate to the main characters.