Nobunaga, the infamous "Demon King of the Sixth Heaven," finds himself reincarnated in a different world... in the form of a young girl! In the flames of the fateful Honno-ji Incident, Nobunaga’s body was obliterated by an explosive blast, yet his indomitable spirit survived. Thrust by the explosion’s impact into an unknown realm, his soul merges with a near-dead individual on the brink of death. That individual is none other than Roselia Romanesco, the eldest daughter of a regional noble family. Upon awakening to her new identity and accepting her rebirth, Roselia learns of her father’s death in battle. With little time to mourn, she takes command, leading her family’s forces in a vengeful campaign against their foes. This compelling story of Nobunaga’s rebirth also includes the special short story “School”, offering a unique side tale.