1. **Male Protagonist:** Formerly known as Lin Feng, a top student in modern science and engineering and a history enthusiast, he time-traveled to become the Crown Prince Li Chengqian who was only about 10 years old (the time-travel time can be set in the early years of Zhenguan, when the conflict has not yet intensified).
2. **System:** Named "Wenyuan" (or other ancient name), it is a highly intelligent AI assistance system, similar to DeepSeek. It exists in the form of a virtual interface visible only to the male protagonist.
* **Functions:** Massive knowledge base (modern science, technology, literature, history, etc.), Real-time task release and rewards, data analysis and simulation, limited environment scanning.
* **Interaction method:** Voice/thinking communication, with preliminary intelligence, able to provide suggestions, but the final decision-making power rests with the male protagonist.
* **Energy/Limitations:** Running the system or performing high-energy-consuming operations (such as deep scans, complex simulations) may require the consumption of "energy points", which are earned by completing tasks or achieving specific achievements. Not all system knowledge is open unconditionally, and some advanced knowledge needs to be unlocked by completing tasks.
3. **Era background:** During the Zhenguan period of Emperor Taizong of the Tang Dynasty. Respect the basic historical context, but allow the butterfly effect caused by the intervention of the male protagonist.
