In 1994, Nakajima Corporation introduced Pickles as part of the Spice Mix Series, based on the concept of "making fashionable plush toys as general goods".
Pickles claims to hail from Qua Mei Dou, France, a wordplay on Kameidō, the location of Nakajima Corporation head office.
[2] In 2013, Nakajima Corporation released the Pickles Safety Frog Backpack in collaboration with the Ishinomaki Reconstruction Assistance Network, a nonprofit organization formed in response to the 2011 Tōhoku earthquake and tsunami.
[4] In 2016, the company started a crowdfunding campaign for a Pickles picture book, which proceeds would be partially donated for the reconstruction of areas affected by the 2011 Tōhoku and 2016 Kumamoto earthquakes.
The series featured the voices of Megumi Hayashibara, Saori Hayami, Miku Kanemura, Akari Nibu, and Miho Watanabe, among others.