Daqian: If You Are Asked to Be My Son-In-Law, Will You Modernize the Country?

[Sign in + cool article + history + system + single female protagonist +...] Qi Yan, who accidentally traveled to the Daqian Dynasty, became the Liu family's son-in-law. The beautiful and charming wife was about to go bankrupt because of her previous life of debauchery, which had offended the rich and powerful. Armed with the sign-in system, he was determined to change everything. Bite! The host successfully signed in today: Gunpowder Specialization] [Ding! The host successfully signed in today: Steelmaking Specialization] [Ding! The host successfully signed in today; corn seeds] Looking at the dazzling array of modern technology and items, until the emperor comes to visit, I can no longer hide it. He just wanted to improve his life, but he accidentally changed the whole world...