A kid and his robot best friend get caught in a corporate espionage war neither of them asked for. Signal turns out to be the only thing standing between Nobuhiko and a weaponized prototype designed specifically to erase him. The comedy stays sharp even when the stakes flip to genuine danger, three episodes that prove a robot buddy story doesn't need a TV series to hit you.
Nobuhiko's life changes when Signal arrives: a robot built specifically to be his companion and protector. The two form an instant bond, but their peaceful routine shatters when Pulse shows up. This weaponized prototype was created by Signal's inventor but has since been reprogrammed by a shadowy rival with a sinister agenda. Pulse isn't here to chat. It's here to wreak havoc, steal cutting-edge robot technology, and crush anyone foolish enough to stand in its way. Signal must adapt quickly. What started as a straightforward friendship between boy and robot becomes a desperate fight for survival against a superior adversary. The comedy stems from the clash between Signal's everyday civilian programming and the intensity of combat situations it never trained for. Pulse keeps raising the stakes, forcing Signal and Nobuhiko to think creatively just to stay alive. The three-episode OVA format keeps things lean and explosive, moving from one chaotic confrontation to the next without letting the pace dip. It's robots, action, and a friendship tested under fire.