Lunch Box (熟女・発情 タマしゃぶり Jukujo: Hatsujō tamashaburi) is a Pink film written and directed by Shinji Imaoka and starring Yumika Hayashi. Imaoka filmed Lunch Box for Kokuei, and Shintōhō released it theatrically in Japan on March 9, 2004. It was named best Pink film of the year at the Pink Taishō ceremony.