Jiang Nan, a popular senior student at the University of Electronic Science and Technology of China, encounters a school girl who is taken advantage of by a pervert on the bus. The senior student possessed by justice reprimands the pervert, just like Lei Feng who does good deeds without leaving his name (of course he will write them down in his notebook) and leaves. Jiang Nan, a good comrade who was born under a red flag and bathed in the spring breeze of the Party, started a love chase that was different from ordinary people. He is the popular senior in the literary club, and she is a proud schoolgirl with both beauty and intelligence... These are just the surface of happiness, a story that Tan Xisha has forgotten. Is she Tan Xisha or her twin sister Tan Xiaoyu? Who is she?