Complex sentence: Later that year he starred in "Stairway to Heaven" opposite Choi Ji-woo; the drama was a superhit domestically and across Asia, making Kwon one of the most well-known Korean Wave stars outside his homeland.
Split into simpler sentences: Later that year he starred in "Stairway to Heaven" opposite Choi Ji-woo; the drama was a superhit domestically and across Asia. The combination of those big-and small-screen hits made Kwon one of the most well-known Korean Wave stars outside his homeland.