B't X

Confrontation! The Machine Empire (1x3)

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X's original donor is Karen and he'll obey only her. He's going to do everything he can to get rid of Teppei and go to find Karen. Teppei finally realizes that X isn't just a robot and gives up - telling X where he can find Karen. He then proceeds back into the Area alone and is soon attacked by the Ryukon Troops.