Lin Wan, an award-winning homeroom teacher, accidentally binds herself to the Myriad Worlds Master Teacher System. From the start, she pulls Qin Shi Huang, Emperor Wu of Han, Emperor Gaozong of Song, and the Chongzhen Emperor into an online class group.
Faced with underachievers putting on airs like emperors, Lin Wan throws in a free package of "Fivefold Thunderbolt from the Heavens."
Zhao Gou gets his hair singed, Chongzhen suffers public humiliation when a documentary about his suicide at Coal Hill plays, but Qin Shi Huang spots a chance to cultivate immortality at a glance. He pays his tuition with a pile of "Hetian jade scraps" and grabs the front-row seat!
Lin Wan sells the antiques for sky-high prices and achieves financial freedom. From then on, emperors across the ages are forced to experience the terror of being under a homeroom teacher's thumb.
[Today's homework: @Zhao Gou, deliver supplies to Yue Fei by the deadline or be eliminated! @Chongzhen, take this repeating crossbow and root out the corrupt officials!]
To win A Map of the World's Mineral Resources and The Principles of the Steam Engine as rewards for outstanding students, Zheng-ge goes all in, and Qin's iron cavalry tramples Rome; Emperor Wu of Han drives an early internal-combustion tank across Eurasia; and the Ming dynasty's fearless battleships usher in the age of global exploration ahead of schedule!
When Lin Wan graduates with flying colors and returns to the modern world, the timelines finally converge.
Western scholars are devastated to discover that the blueprints for their Industrial Revolution are all rough drafts buried in Qin tombs.
And the statue of the "Divine Teacher Goddess," revered as a deity by the First Emperor and enshrined atop an altar, looks exactly like Lin Wan!
