Woljeong Sonata is a black pork restaurant within five minutes of Jeungmi Station in Seoul. It grills ogyeopsal and pork collar on a Jeju volcanic stone griddle and serves them with meljeot and fresh wasabi. Arriving at 6 p.m. on a weekday, the tables fill by around 6:20 p.m., and parking is available. When a crowd gathers, waits can run long.