GMK Deathly Queen is a custom keycap set designed for mechanical keyboards, featuring six unique Pantone colors and a base kit with Katakana sublegends. The design draws inspiration from the popular Jojo series, incorporating elements that reflect its themes, particularly through the use of Katakana for borrowed words. A notable aspect of the set is the Novelty kit, which includes the Katakana character "Go" twice, symbolizing a menacing presence often associated with villains in the series. The set has undergone revisions for improved kitting and design elements, making it a distinctive choice for fans and collectors.