He is a hunter from Kanagawa. He responded to Kurono's and Reika's call, to join the Tokyo team and fight against the invading aliens. He seems more interested in Reika, than the fight considering that he jealously asked Kato if he was Reika's boyfriend. Takeda seems to be more of a gentlemen type.
He assists his team in rescuing humans from the Mothership. When they are attacked, he attempts to retaliate using the H-Gun but he couldn't fire it as a human was caught by the three headed beast.