Sio is a Japanese home-style restaurant in Yeonhui-dong, Seoul. Its signature dish, three-color yakitori, tops rice with chicken thigh and egg simmered in tare soy sauce, served with salad, side dishes, and soup. Dinner service offers sukiyaki, yakitori, and soup curry, with cream cheese croquettes and karaage available as additions. Waits form on weekends and at dinner, and even weekday lunch requires more than 30 minutes.