In this episode, Ken faces off against an opponent who mocks his mech, initially an E-rank upgraded to D-rank. The challenger plans to kill Ken and gain favor with Mr. Luther, but Ken and his companion Zero prove more powerful than expected. Despite the opponent’s heavy firepower and full-spectrum attacks, Ken’s mech successfully blocks and counters, revealing he deliberately limited its design to hold back power. The fight escalates when Ken unleashes a laser sword, surprising his enemy. The episode ends with the challenger shaken and realizing Ken’s strength was underestimated, leaving their next move uncertain.