Martin is the 13-year old protagonsit of Chōsōjū Mecha MG. The hero of the game is a pilot of Marionation Gears, and is known in the game as a Puppetmaster. He lives in Chronotown and, despite being only thirteen, works at a factory. In the beginning of the game, the hero desires to become a Marionation Gear operator, and his dream is finally realized one day when he is allowed to control one. Shortly thereafter his city is attacked and he uses his newfound ability to save the day. In the game he is friends with Kay, who longs to become a mechanic rather than an operator of Marionation Gears.