On July 15, Kura Sushi announced that a system failure had occurred due to unauthorized access to a business partner, resulting in delays or non-delivery of sushi toppings, frozen foods, and some ingredients. As a result, some products are temporarily out of stock and delivery delays are occurring. In an interview with ITmedia NEWS, it was revealed that the cause was unauthorized access announced by Nichirei (Chuo-ku, Tokyo) on the 13th.