Hotaru is a Japanese skewer and fried food shop in Osaka that serves kushikatsu and tonpeiyaki, located next to a yellow sign on the city's main street. It offers pork tenderloin, shrimp, and mozzarella cheese skewers along with a tonpeiyaki filled with ingredients, and the batter is thin and crisp. Orders are placed using a Korean menu, and the order slip is written by hand and taken to the staff, so it takes some time. The shop sits deep inside a narrow alley, making it hard to find at first.