As Season Two Dramas Flood Screens, Few Manage to Surpass the Original

A hit drama now almost automatically brings expectations of a second season. Series production, once more closely associated with overseas television, has become standard across South Korean broadcasters and streaming platforms.

This year’s slate includes “Good Partner 2,” “The Fiery Priest 2,” “Taxi Driver 3,” “Made in Korea 2,” “A Shop for Killers 2,” “Yumi’s Cells 3” and “New Recruits 4: Sabotage.” “The Judge from Hell” and “Moving” have also confirmed second seasons. The appeal for platforms is straightforward: returning viewers offer a more reliable audience, while long-running series can help prevent subscribers from leaving.

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Producing the next season of an existing popular drama is more stable than creating a new one, and the growing importance of intellectual property has helped spread the seasonal format.

But the original’s success can become a burden. “Penthouse” recorded peak ratings near 30% in both its first and second seasons, while its third season peaked at 19.5%. “Sweet Home” won praise for opening a path for Korean creature dramas in 2020, but its second and third seasons, released in 2023 and 2024, produced weaker results. “Squid Game” and “Hellbound” have faced similar difficulties. Analysts say later seasons must meet expectations that grew after the first success, while dramas not initially designed as series can struggle to expand their worlds coherently.

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Season one crossed between the past and present and unfolded over one day, while season two moves forward in real time with a fast-paced structure.

“A Shop for Killers 2,” released on May 22, offers a more favorable example. The action drama follows Ji-an, played by Kim Hye-jun, who becomes the target of suspicious assassins because of her inheritance from her uncle Jin-man, a former mercenary who runs a secret weapons shop for killers. It topped Disney+ television rankings in South Korea, Japan and Taiwan, and led Good Data Corporation’s combined television and OTT drama buzz rankings for three consecutive weeks.

“Taxi Driver” has also built a durable franchise. Its first and second seasons reached peak ratings of 16% and 21%, while the third season, which ended in January, peaked at 14.2%. The common thread in these successes, producers say, is not simple repetition. The series preserve their recognizable tone while giving characters new growth, relationships and conflicts. “A Shop for Killers” director Lee Kwon said the second season moves forward in real time, introduces new characters and brings one villain into conflict with another, while keeping Ji-an’s journey from childhood to adulthood at its center.

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The key to planning is not repeating the original’s formula, but carefully expanding the scale and density of the story as the characters grow and change.