Sushi Hyeon is a small restaurant in Seoul that serves aged hoe and sushi. You can order an assorted hoe platter, tuna hoe, and fried shrimp, and a fish cake soup comes with dine-in orders. It opens at 5 p.m. every day and has about five four-person tables and two two-person tables, and it takes takeout orders by phone. There is a long wait.