Luo Yaohua by teaching A Sir qualify as police Ah , Sir , hit send back to school as an undercover investigation gang campus drug network . The Yaohua positive to curry favor with the school four wicked , but the new teacher how wonderful the snow does not easily won the trust of students , Yaohua was also good to attract . At this point, the appearance of cold bowling coach ancient Ka Lan was revealed Societies leader aunt earners . In order to solve the case , the Yaohua had to pretend to pursue Ka Lan . The other side , young Inspector Cheng force Carol started the pursuit . Detection in sight, the Yaohua identity been know to wear ...