- Protagonist: Guo Ai (traveler), who was originally a 28-year-old Internet product manager. He understands management, has a brief knowledge of Tang history, and has three views. In the early stage, his force value was 0, and in the later stage he grew into an iron-blooded general.
- Heroine: Princess Shengping, the beloved daughter of the Emperor of Tang Dynasty. She was charming and arrogant in the early days, but she was attracted by Guo Ai's modern thinking and gradually grew into an empathetic and responsible woman.
- Era background: 10 years after the Anshi Rebellion (775 AD), the Tang Dynasty was prosperous on the surface, but in fact the vassal towns were divided and eunuchs were in power. The Guo Ziyi family had great achievements but the leader was in a delicate situation.
