Drum-Kan-Bē is one of three central robotic protagonists who share a world with humans. He forms a core friendship group with Nejimaru and Sombrenosuke; the trio operate as a cohesive unit. Their peaceful existence shatters with the cataclysmic invasion by the extraterrestrial force Corporation Baddoru, commanded by Captain Baddle. Confronted by this alien threat, Drum-Kan-Bē and his companions abandon their former tranquility, actively joining the collective robotic resistance to defend their world. Details regarding Drum-Kan-Bē's specific design, individual personality traits, internal conflicts, or character evolution throughout the series are known only from the main 26-episode television series; his portrayal or involvement in other media like movies, OVAs, or spin-offs remains undocumented.