Zhang Xiao (Liu Shi Shi), a Chinese young woman from the 21st century, accidentally travels back in time to the Qing Dynasty period during the reign of Kangxi Emperor after experiencing a deadly combination of traffic collision and electrocution, resulting her somehow reliving the life of one of her previous incarnations and forcing her to assumes the identity belongs to her past: Maertai Rouxi (Liu Shi Shi), the teenage daughter of a Manchu nobleman, who also had a near-fatal incident in her own time which Zhang awakes from.In the second season an unfortunate car accident caused Zhang Xiao to dream about her unforgettable love with â€œFourth Princeâ€. One fateful day, she meets a man who looks just like the â€œFourth Princeâ€ in her dreams. He is Yin Zheng, the stepson of Zhen Tian Corporationâ€™s chairman. To find out what his relationship is to â€œFourth Princeâ€, she finds work as a designer at Zhen Tian. Like any other ordinary newcomer to the business industry, Zhang Xiao is ostracised by her fellow colleagues. Luckily, her superior Yin Zheng sees her as a talented worker and helps her avoid difficult situations. However, fate plays with her again. Just as sheâ€™s about to solve this mysterious riddle, an accident occurs, causing Zhang Xiao to lose her memory. Now with no more worries, Zhang Xiao works diligently at Zheng Tian. She gets to know Lan Lan, Yin Zhengâ€™s supermodel girlfriend who looks just like her. Slowly, Yin Zheng and Zhang Xiao develop unspoken feelings for each other, but before it can progress any further, a gentle and considerate Kang Si Han enter's Zhang Xiao's world. It turns out that Yin Zheng, Kang Si Han, and Kang Si Yu are all potential successors of Zhen Tian Corporation. Zhang Xiao suddenly finds herself in the center of a power struggle.
After a car accident plunges a woman into the dreamy past that gave her an unforgettable romance with the "Fourth Prince," she returns to her life in the modern world.
Scarlet Heart, also known as Bubu Jingxin, is a Chinese television series based on the novel of the same Chinese title by Tong Hua. Filming for the series started on 6 December 2010 in Shanghai and ended on 22 March 2011. It first aired in China on the Hunan Broadcasting System on 10 September 2011.
A sequel, Bubu Jingqing, officially began filming in Tianjin, China, on March 2013.