Argentosoma

This futuristic animated series tracks the ongoing war between humans and their ultimate nemesis, power-hungry extraterrestrials. To conquer them, scientists have taken alien parts as a base to build the best weapon with which to do battle. But the plan backfires on them as the new creation goes on a murderous rampage. Only Takuto Kaneshiro, who changes his designation to Lieutenant Ryu Soma, is strong enough to face up to it.