"The Heirs" was so popular a drama that fans are still curious about the stars and want to know what they are up to. The drama concluded in mid-December and the stars have since been in such high demand that they have not had much down time.

Lee Min Ho, who played Kim Tan, had an extensive fan tour that lasted until May. He visited the Philippines, Taiwan, China, Japan and Malaysia. Before he began work on his first film "Gangnam Blues," he took time out to film a promotional mini-drama "One Line Love" for a mobile messenger app.

The mini drama, in which he meets a Chinese girl, rated more than 20 million views.

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