Wang Qiang (Xing Yuanyuan), the most naughty “scumbag” in the third class of junior high school, and Shi Miona (Wang Bowen), a cranky homeroom teacher, accidentally swap bodies. Wang, who had been oppressed for a long time, got a taste of being a homeroom teacher, and Shi also experienced the feeling of being considered the “school scum”. As the date of Shi’s open class competition is approaching, the two urgently need to find a way to change back into their bodies. But first, they’ll have to overcome numerous obstacles…

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