Yu Jun Xing

Gu Ai was living a happy life as the daughter of the prime minister until a scheming bureaucrat plots for her family’s demise. Her family is devastated and separated from each other. Gu Ai goes into a life disguised as a man in order to save her father, who is accused of consorting with a rival state and treason. Then one day, she happens upon the second imperialprince and becomes one of his personal security guards…

(Source: Pocket Comics)