Kayoko Onikata is a student at Gehenna Academy and a member of the Handyman 68 group in the game and anime series Blue Archive. Known for her gloomy demeanor and reserved personality, Kayoko is a reliable and highly skilled student specializing in explosives and covert operations. Despite her intimidating appearance, she is caring and deeply loyal to her friends. Within the story, Kayoko often plays a support role, offering tactical expertise and helping her team handle dangerous assignments with precision.