SUMOGOYA Vincom Đà Nẵng is a Japanese-style yakiniku restaurant on the fourth floor of Vincom Đà Nẵng in Da Nang. It serves an all-you-can-eat buffet where diners grill their own meat, along with side dishes such as dolsot bibimbap and kimchi. Grilling the meat takes a long time, and the buffet meat comes out slowly. The beef arrives still frozen and is tough.