The TV series " The Return of the Royal Sister " was a popular modern romance novel. It was about a young girl who accidentally traveled to the 1990s and became a female teacher at that time. After that, she met a young and promising male lead and experienced a series of complicated love stories. If you want to watch the complete TV series " The Return of the Royal Sister," you can watch it on all the major video websites in mainland China. However, due to copyright issues, the broadcast time and copyright of the entire episode may vary from video website to video website. It is recommended to first determine which video website you want to watch and then check the website's complete collection update time and copyright status. In addition, some streaming media platforms could also see high-definition clips or a buffer version of the TV series " The Return of the Royal Sister ", but it was not recommended to watch it directly to avoid copyright violation.