Volume 15 explores the hidden truths behind Eren’s Titan abilities. A shocking revelation about his father’s past reshapes everything he believed. The royal family’s secret power becomes central to the conflict. Eren struggles with guilt and confusion as he uncovers painful memories. The battle for control over humanity’s future intensifies. Characters are forced to confront uncomfortable truths. The emotional weight of inherited sins becomes a key theme. Alliances shift as motives are questioned. The stakes are no longer just survival but the fate of the entire world. This volume builds toward an explosive confrontation that promises lasting consequences.