The crew make a stop at the industrial world of Yokkamarché, where they meet the man who gave Robby's father the Nagaya Voyager and the Hizakuriger robot. Robby receives a startling revelation about a member of his family.
♪ Gan-Gan! The most stubborn enemies ♪
Selbst zähe Gegner
¡Gan-Gan-Gan! 
Los peores enemigos
Gan, gan, gagnons tout
Gan-Gan! Os inimigos mais teimosos