Cubic Galois

Cubic Galois is a fourteen-year-old boy with the title "Edison" who frequently invents robots. Mathematics interests him more than puzzles, but seeing Kaito's Phi-Brain in action draws his attention. He initially comes across as self-centered, largely because his youth prevents him from understanding the full consequences of some actions. Nonoha calls him "Q-chan," a nickname he does not seem to mind.