GMK Retroguardia is a new keycap set that serves as a vibrant counterpart to the previous GMK Avanguardia. Retaining the geometric design and minimalist layout of its predecessor, Retroguardia introduces a lively aesthetic with a vivid green accent against a deep blurpleish grey base. The name, meaning "rearguard" in Italian, reflects its connection to Avanguardia, but with a more energetic twist inspired by early digital aesthetics and contrasting geometries. The set includes highlights in indigo, similar to Avanguardia, and there are discussions about potential novelties kits, mousepads, and other merchandise. The product is currently in the design phase, with future plans for vendor partnerships and group buy preparations depending on community interest.