Clash! Samurai Koji vs Ashura's Mechanical Beast

Synopsis

Dr. Hell completed Daimer U5. It's a Mechanical Beast where the pilot and machine become one, just like Mazinger Z. Mazinger Z rejects Daimer U5's challenge, but a dog gets caught in the battle and dies. The dog had been abandoned by humans, picked up, and cherished by a man named Saijo. Baron Ashura uses Saijo's anger, even killing a puppy to frame Koji. Koji is punched by Saijo and temporarily loses his eyesight.