An 11-year-old genius builds a robot brother because loneliness doesn't care how smart you are. What follows is pure invention-fueled chaos, the kind where every episode is permission to ask "what ridiculous thing can these machines do next?" Dotakon and Chopiko aren't tragic AI learning to be human, they're just family, and the show treats that ordinariness as the strangest miracle of all.

Eleven-year-old Michiru already holds a doctorate in atomic physics from a university in California, but what she really wants is a little brother. Rather than wait, she builds one herself: Dotakon, a robot boy. Before long a small robot sister, Chopiko, joins them, and the three set off on a run of fantastic adventures powered by Michiru's inventions. The result is a lighthearted science fiction comedy about a gifted girl and her robot siblings.