The GMK Yütousu is a keycap set inspired by the traditional Taiwanese pastry known as yütousu, which features a flaky outer shell and a taro paste filling. The name "yütou" translates to taro, while "su" refers to flaky pastry. This set aims to evoke nostalgia and the joy of sharing this delicacy, particularly reflecting personal memories of enjoying it with family. The product includes a Base Kit with Zhuyin sublegends, along with additional kits such as Novelties and Spacebars. The pricing for the Base Kit is set at $130, with various other components available at different price points. The estimated delivery for the product is scheduled for Q4 2023.