Since the successful drama "Iris" was first shown in 2009, it has faced a series of lawsuits claiming that its characters and scenes were stolen from other works of fiction.

But the courts decided those claims were groundless. The drama, which starred Lee Byung Hun and Kim Tae Hee, has managed to win every plagiarism suit filed against it, including the final case, which was decided this week.

The lawsuits began in 2009 when Park Chul Joo, writer of the novel "The Sun Never Rises on Fuji Mountain," sued Taewon Entertainment, the production company for "Iris."

Park claimed that the drama plagiarized over 162 instances of his novel and kept him from being able to produce a drama of his own based on his book. Examples of plot similarities that he cited include the threat of a nuclear explosion in a city and the hero interacting with a female North Korean spy.

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