Webtoons have become the entertainment industry’s most reliable source of stories in Korea in recent years, supplying a steady stream of pre-tested narratives as studios increasingly turn to digital comics to reduce risk. Yet as webtoon-based projects continue to flood cinema and streaming platforms, a clear divide has emerged between adaptations that cleverly reinterpret their source material and big-budget failures, revealing how fragile that formula can be. Breakout success of ‘Zombie Daughter’ The clearest sign of a breakthrough in 2025 came from Naver Webtoon’s video production subsidiary Studio N. The film "My Daughter is a Zombie,” based on the popular 2018 webtoon by Lee Yun-chang, emerged as the year's most surprising box office hit. With over 5.6 million viewers, the film became the most-watched Korean release of 2025, a year that was otherwise short on blockbuster hits, proving that a good remake can appeal to everyone, not just original fans. The movie succeeded because it perfectly mixed dark humor with a touching story about a father’s love. Netflix also saw grea