Mr. Huo's Undercover Agent, the Secret Inside the Rubik's Cube

Nice! Finished in one go. The plot didn't drag out at all, and the twists were quite unexpected. The identity of this undercover agent is hidden deep enough, and the interaction between the male and female protagonists sparks. There is no bloody plot, I just like this kind of short, fast and refreshing writing. An excellent read for fishing, the author should update/open a new book as soon as possible!