This OVA is no more than a preview as listed in the synopsis. But it took just an OVA to get me interested in the manga until an anime is released (supposedly 2018?). After reading the manga the OVA really highlights the fight scenes in the manga. The story is about 17 (or 15 I don't remember) year old Baki and his fight to become the strongest fighter and beat his dad in a fight. When fighting there are no rules; anything and everything is fair game. The artwork from this preview seems similar to Drifters (aired Fall 2016). But that is about asmuch as you can get from this short clip.

Overall, this is a short video that highlights the major fights of the manga. There is not much enjoyment to get from it, but it did get me interested in the manga itself. Because of this OVA, I am looking forward to when an actual anime gets released.