<p itemprop="description">Continuation of Teppei&#39;s journey with B&#39;t X to rescue his brother Kotaro Takamiya from the Machine Empire. The OAV series picks off from the TV series from the point where Hokuto successfully saves both Teppei and B&#39;t X and makes B&#39;t X far more powerful than before.<br/><br/>(Source: ANN)</p>