Unotake Kasu Udon is a kasu udon shop on the second floor of a building in Nishishinsaibashi, Chuo Ward, Osaka, with no sign at street level. Its main dish is spicy beef kasu udon, and beef ponzu, egg, and yubu toppings can be ordered as well. The space is small, with counter seating for five to seven people, and it stays open until 1 a.m. The shop seats only five or six people.