Serial Designation K-Y-O is a calm, stoic, mysterious Disassembly Drone who usually hides her feelings. However, that doesn't mean she is not feeling anything, she just hides it to make herself less vulnerable with less information about her being around. That changes when she gets to befriend and trust someone more, then she also communicates her inner feelings and becomes upset when necessary. For somebody she loves, she is even ready to sacrifice her life.