The Tang Dynasty's Simple Son-in-Law: My Sister Is the Crown Princess

About the story

A modern-day engineering PhD travels back in time and becomes Su Hao, the Tang crown princess's younger cousin on her father's side, nicknamed “Simpleton Su.” To repay Lady Su, the older cousin he calls his sister, for raising him, he shoulders a pair of hammers and vows to keep her safe. He cures the crown prince's leg ailment, produces refined salt to break the power of the aristocratic clans, designs iron stoves to warm the imperial harem, and refines white sugar to replenish the imperial private treasury. With knowledge far ahead of the era, he clears his sister's path step by step. During a winter hunt, hundreds of warriors sworn to die surround the crown prince to kill him. Su Hao hoists Li Chengqian onto his shoulder and leaps off a cliff. Depending on one another for survival, the two cousins protect each other amid treacherous court intrigue, carve out a way for the crown prince to survive, and pave the way for Lady Su to become empress!