Layar-21 – Positive and upright character of the essence of freshman freshman Sun Guo made a dream in the classroom, leading to the first time in 18 years nocturnal emission. Soon thunder, a black figure appeared, it is the fruit of Tintin! Since then, his male hormones have been activated, which makes the Sun Guo very distressed, and his girlfriend Tang Xin love also occurred variables: the appearance of a beautiful Tang heart into the university on the high-profile, which makes Sun Guo want to be A better person to guard their own feelings, did not think they are accidentally joined the student union. Unexpectedly, Simon, president of the Student Union because of love Tangxin, Sun Guo and his friends Zhu Guoguang, Sai Yuting all sorts of difficulties, so that they accept a variety of wonderful test results Tang heart misunderstanding. Sun Guo unknown on the inside, step by step into the trap of Simon, and Tang’s misunderstanding slowly deepened, the two feelings are gradually to the edge of the rupture. After all, Sun Guo and Tintin in the help of friends, and Tang will be rebuilt old good or completely parted ways?