I love Zhang Ruoyun's acting!! Especially in this drama, his acting of a character who is a mathematical genius but doesn't have strong social awareness is so impressive. His performance is always so good! This was a short drama and even though it's a bit dry, I like how it's not dragging. It started with a problem that the ml needed to solve and it ended after the problem was solved. I really liked the cinematography and directing of this drama. The colors and the pan movements were really fitting. There is also a lot of politics that go really deep. I wouldn't say the plot itself is that interesting but if you like Zhang Ruoyun, this is a good filler drama! Also almost everyone is this drama are experienced actors and I'd say they played their roles of government officials so well!