Histoire would describe herself as a diligent and powerful tome, the Oracle of Planeptune with a deep sense of responsibility. Possessing vast knowledge of Gamindustri's history and realities, she stands as a guardian and mentor to the CPUs, guiding them with wisdom and unwavering dedication. While stern and serious in her duties, she also harbors a caring and supportive nature, always prioritizing the well-being and stability of Planeptune and the broader dimensions she oversees.