Drive Knight/Synopsis

History
Drive Knight was named by the Hero Association after a direct request from himself.

Alien Conquerors Arc
Drive Knight is first shown at the S-Class Hero Association meeting. Shortly after the attack from the Dark Matter Thieves, he alongside Genos and Child Emperor observe Tatsumaki besieging the thieves spaceship. As this happens, he states that he has errands to run. Before walking off, he mentions to Genos that Metal Knight is not to be trusted, and that Genos will soon find out why.

Super Fight Arc
Drive Knight takes care of several monsters and asks one of them for information about the current invasion.

Monster Association Arc
Drive Knight managed to retrieve information from the monster and transmit it to the Hero Association Headquarters, revealing that the Monster Association Headquarters may be in Z-City. He apparently went there on his own and is presumed to have been defeated since the Hero Association lost contact with him.

However, he later suddenly shows up to the raid as he throws his shape-changing box at Nyan to break the Dragon Level monster's hold on Food Battler Futoshi and Waganma. He ignores Nyan's inquiry about his identity and leaps towards him on the offensive. Drive Knight manages to keep Nyan busy by constantly changing forms, leaving the cat monster unable to fight back. Once he gets an opening, Nyan slinks into the cracks between Drive Knight's armor, resting inside his mechanical body and attacking him from the inside. However, Drive Knight retaliates by flooding his system with fire, burning the feline to a crisp and forcing him to jump back out. Drive Knight grabs Nyan by the collar, stabs him through the chest, and incinerates him, finishing him off before showing his charred corpse to Sekingar.