Kid functions as Kanipan's Interface Robot, providing support without innate special abilities. His capabilities dynamically expand by integrating tune-up parts crafted by Kanipan, enabling varied functions as required. Kid's speech consistently ends with "deshi" (デシ).

During the first season, Kid accompanies the young Kanipan on Planet Sharaku as Kanipan pursues his inventor's license, primarily serving as a support unit during inventions and challenges. Five years later, in the second season, Kid lives with the teenage Kanipan and assumes a more active role as his caretaker while Kanipan works as an IT engineer. Kid's operational capacity undergoes significant enhancement when he gains access to a pendant device originally carried by Angelica. This device permits instant part transfers and transformations, allowing Kid to rapidly adapt during critical moments and repeatedly assist Kanipan during the planetary crisis threatening Sharaku.

Across both seasons, Kid remains a dedicated companion, evolving from basic support into an essential protector whose upgraded abilities directly contribute to resolving major threats alongside Kanipan. His development mirrors the increasing complexity of challenges faced by the inventor, culminating in his departure from the planet with Kanipan and their companions following the resolution of the planetary emergency.