I Was Writing a Diary in Qing Yu Nian, and the Eldest Princess Came to Visit.

Li Hongcheng traveled through time! He came to the world of Qing Yunian and became the crown prince of Prince Jing. Awakening the diary system, you can become stronger by writing a diary! The starting reward is the Grand Master Template, as well as Barrett! Killed Northern Qi at the border and seriously injured Uesugi Tiger! After returning to Beijing, he was awarded the title of champion for his military exploits! Lin Wan'er: "Husband! You'd better go find Si Lili! I really can't stand it anymore!" Si Lili: "Bah! You are quite serious in front of others! You are also a bad guy behind the scenes!" Fan Ruoruo: "Brother Hongcheng! If you make trouble again, I will be annoyed!" The eldest princess: "Hongcheng! Let me take a good look at you!" Zhan Doudou: "Hongcheng, didn't you say you wanted to taste it? It's up to you tonight!" After drinking and releasing his military power, he became an idle prince in Kyoto, flirting with beauties. But Li Hongcheng didn't want to just be a prince and accumulate strength secretly. A few years later, he gave an order, pointed his sword at Emperor Qing, and rode his horse across the Central Plains to seize the emperor. A few years after he ascended the throne, he destroyed Xihu, Northern Qi, and Dongyi, and unified the world. Finally become an emperor for eternity! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.