Yuu is an otaku who is into foreign dramas. She was stricken with grief when her beloved oshi from one of her favorite Chinese dramas died. However, in an accident, she is transmigrated as Ling Ning, the court lady who serves her oshi. Yuu will use her past life's knowledge to make every effort to ensure that her oshi lives. Supported by companions with distinctive personalities, will she be able to make sure her oshi survives?