Two dudes decide the solution to their problems is punching through every criminal in Southtown, one absolutely ridiculous fight at a time. The OVA doesn't care about setup or pacing, it's a 50-minute sprint through a video game adaptation that knows exactly what it is and commits entirely to the bit. You're watching Ryo and Robert because they're loyal to each other and genuinely fun to be around, not because the story demands it. The fights are clean and fast, the comedy lands because nobody pretends this matters, and by the time Mr. Big shows up, you're already sold on the simplicity of it. This is the anime equivalent of a beat-em-up arcade cabinet that runs perfectly, costs a quarter, and respects your time.

Ryo Sakazaki is a martial artist whose trouble starts with a house cat, a break-in, an ancient artifact and an electric bill he never paid. When his younger sister Yuri is kidnapped by Mr. Big, the most powerful crime boss in Southtown, Ryo has to fight his way into the city's underworld to get her back. His best friend Robert Garcia joins him, and the two take on Mr. Big's men one after another. Mr. Big believes they stole a priceless diamond called the Eye of Sirius, and without it they have nothing to bargain with but their fists. This one-episode OVA mixes adventure with comedy, pairing hand-to-hand combat with silly moments as two friends battle their way up the criminal ladder.