A deep dive into the iconic line from The Heirs that will probably follow Kang Haneul for the rest of his career:“Lucifer appearing at the school of Satans…”We break down the meaning behind the now-famous abbreviation 사학루등, explore the Korean grammar that makes the line so memorable, and even look at the internet slang 항마력 — the “embarrassment resistance” needed to survive secondhand cringe.Plus, we revisit the parody version performed nine years later on SNL Korea and the moment it resurfaced on Radio Star.If you love K-dramas and want to learn Korean through iconic lines, this one’s for you.