The beginning of the story of the Tang Dynasty's Imperial Son-in-Law: A rhinoceros comes knocki

In the ninth year of the Zhenguan era, Wang Zhihuan finds himself transmigrated into a new reality, bound to a merit system that rewards good deeds with technological advancements. With the ability to acquire innovations such as Champa rice, movable type printing, and basic pharmacology, Wang Zhihuan initially aims to live a simple life, focusing on farming and accumulating merit points. However, his plans are derailed when four-year-old Princess Sizi stumbles upon his farm, drawing the attention of the royal family to his exceptional cooking, medicinal tea, and rice. As his talents gain recognition, Wang Zhihuan is thrust into the complexities of court affairs, leveraging his knowledge to prevent inbreeding and ultimately marrying Princess Changle in a strategic move to persuade the Crown Prince to abdicate in favor of Li Zhi, setting him on an irreversible path that intertwines his fate with the destiny of the Tang Dynasty.