ThrillerSci-fiActionPsychologicalComedyMechaSportsAdventureDramaMonstersSurvivalMartial artsShounenSafe
From Tokyopop: After the abduction of his brother Kotaro by the Machine Empire, Teppei Takamiya joins forces with X, one of several highly-advanced, artificially intelligent machines known as B'ts (pronounced 'beat'), to rescue him.
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