Hyperspace Boy Wonder Seven is a fictional tokusatsu, mentioned in TV series Giant Robot Mikazuki. This single 25-minutes episode of the "Wonder Seven" was released in 2001 as bonus with the "Tekkōki Mikazuki" DVD-box.

Hyperspace Boy Wonder Seven

Mina and Mizuki sisters attended a ballet class in Tokyo. One day, the sisters return home separately, but younger sister, Mizuki, is kidnapped on the way home and discovered as a corpse. On that day, Mina blames herself for returning home, leaving her sister to practice ballet staying. Her mother, Teruko, is also very upset by the news of the discovery of her body, causing deep emotional wounds. The incident was featured on a variety show, and the mother and daughter, who couldn't stand the curiosity of the world, moved to a quiet country town far from the city. Although they started a new life, Teruko is bullied by a mysterious mad woman and Mina is bullied at school. And a mysterious murder case occurs again around them.

Swan's Song

As the mermaid princess of the North Pacific (one of the seven mermaid kingdoms), Lucia entrusts a magical pearl to a boy who falls overboard a ship one night. Lucia must travel to the human world to reclaim her pearl and protect the mermaid kingdoms. Using the power of music Lucia is able to protect herself and the mermaid kingdoms from a growing evil force.