Wanpaku Oomukashi Kum Kum follows the adventures of Kum Kum, a prehistoric “Dennis the Menace”‑style character. He, his family, and friends belong to a tribe of Mountain People who hunt and farm high in the hills near the Fire Mountain. The comedy series blends infectious chibi‑cuteness with the pathos of everyday prehistoric life, and centers on Kum Kum, pronounced “coom‑coom”, and his young friends. His knack for getting himself and the other kids into trouble is what makes the series fun.