Mermaid Melody Pichi Pichi Pitch Lunch Box 2004, it was included as a supplement with the manga Nakayoshi. It's a slightly small lunch box, how about using it as a small item case or for a small onigiri? It's foldable, so you can fold it up small after use. This is an item from over 20 years ago, so please check the photos for the condition of the item. Heisei era Retro Manga Supplement Rare Nakayoshi Pink Hanami Excursion Picnic Sandwich Onigiri