キュービック・G, Edison, Q-Chan, Q-taro
A young boy with the title of Edison who is often inventing various robotics. He is often more fascinated by mathematics as opposed to puzzles though takes interest in Kaito after witnessing his PhiBrain in action. At first he appeared to be selfcentered however this resulted from him being too young to underst the full extent of some of his actions. Nonoha calls him Qchan as a pun on his name and he does not seem to have a problem with that.