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Sharp 2 was a South Korean teen drama that premiered on MBC in 2005. It was the sequel to the 2003 drama Sharp. The drama follows the lives of five high school students who are members of the school's cheerleading squad. Heechul played the role of Shin Dong-hee, one of the five students. This was Heechul's first acting role, and it helped to launch his career as an actor.