In 2024, CSD partnered for the fourth time with EDWIN's premium brand EDOKATSU to launch four adorable "Katsutaro Series" collaboration masks, integrating the lively image of the Shiba Inu into CSD's classic designs.​

In Japan, Shiba Inus are symbols of loyalty, courage, and intelligence, and serve as the brand mascot "Edo Katsutaro" for EDOKATSU.​This year, Katsutaro takes on various Edo-period personas with playful expressions, bringing a touch of sweet healing to our hectic modern lives.