Based on Nagano-sensei’s “Chiikawa,” the new product “Chiikawa Kiramekko Teddy Bear Christmas” from the accessory plush toy brand “Kiramekko” will go on sale starting November 6, 2026, at Chiikawa Market, Chiikawa Land, and other locations! Three designs—featuring Chikawa, Hachiware, and Usagi dressed as teddy bears and accessorized with red and green Christmas-colored ribbons—will be available for 2,420 yen each (tax included)!

A limited-edition pink version of OxiClean—the oxygen-based bleach that also appeared in the manga *Chiikawa*—will go on sale on October 2, 2026, as the “OxiClean 1500g Chiikawa Package.” It will be available at drugstores, home improvement stores, online retailers, the Chikawa Market, and Chikawaland nationwide, with a manufacturer’s suggested retail price of 1,500 yen (excluding tax).