The second collaboration between the TV drama “Delicious School Lunches Season 4” and Iwatsuka Confectionery’s “Kinako Mochi” has been announced. A “Pineapple-Flavored Kinako Mochi,” inspired by the show’s setting in Okinawa, will be available for a limited time, and “Kinako Mochi” will also be released in limited-edition collaboration packaging. From October 1 to December 20, 2026, a campaign will be held where customers who submit receipts for eligible products via LINE will have a chance to win prizes—including a script autographed by Hayato Ichihara—with a total of 235 winners.