Where it comes from
The line in the source
TVアニメと連動したポケモンのシールがランダムに入っており In English
Randomly inserted Pokémon stickers linked to the TV anime (Daiichi-ya Bread "Pokémon Bread", on sale since 1998). Anime-linked art in a licensed food SKU; the credit line on anime-linked licensed goods carries TV Tokyo, ShoPro, JR Kikaku (see credit-line facts).