Isono Kazuo is a ramen shop on the first floor of the Arashi Ganko Building near Susukino in Sapporo. Its signature dish, Sapporo Black, uses a rich soy sauce base with garlic and thick, chewy noodles. The shop opens at 10 PM and runs until early morning. Seating holds only about 6 to 8 people, so waits get long.