Restaurant Castle River (Osaka City Chuo-ku, Osaka Castle Hall) is holding the "Castle Town Festival" in the area around Osaka Castle Hall, Jo Terrace, and Yomiuri TV. I was invited to visit, so I decided to go. The local ramen tent, which seemed to have been introduced on a TV show, had about a 30-minute wait. However, at the restaurant below Osaka Castle Hall, I could easily get a Shinobi Burger with the "Shinobi" branding. Despite it being an event day - which it was today too - the restaurant was surprisingly not crowded, probably because it was slightly off the main path. I placed my order at the counter with no waiting time, got a number tag, and secured a seat facing the window. The cherry blossoms outside were in full bloom. Everyone seemed to be there for the Shinobi Burger, as I didn't see anyone ordering anything else. After about 10 minutes, my number was called, and I received my Shinobi Burger - a hamburger with a potato croquette, grilled meat, and cheddar cheese on top. The fries were also plentiful, which was nice. There was no paper to wrap the burger, but they provided a fork and knife. I grabbed the burger with both hands and indulged in the deliciousness. The cheese dripped, and the meat fell, but once I started eating, I couldn't stop. Of course, I took breaks to eat the fries. The portion was generous, and at 800 yen, it was quite affordable. The best part was not having to wait in line. (March 25, 2023) Restaurant Castle River (Catsle River) Osaka City Chuo-ku, Osaka Castle 3-1 Osaka Castle Hall North Side 1F 06-6966-1328

The drinks took a long time to come out and the service was terrible.