Charcoal Net Grill Jingisukan Tanukikoji Yamagoya is a charcoal lamb yakiniku restaurant in the basement of the Tanukikoji shopping arcade in Sapporo. Diners grill lamb shoulder over a charcoal net and eat it with vegetables and kimchi. On weekend lunchtimes it runs a 60-minute all-you-can-eat, with orders placed on a tablet. The all-you-can-eat meat centers on lamb shoulder, so the selection is limited.