RikiOh OVA 01 The Wall of Hell 力王 等括地獄 [1989]

The story of a young man with the strength of 50 men who finds himself inside a harsh prison run by an evil assistant warden and the head boss who secretly has the ability to transform himself into a "Hulk" type monster. Riki, who is also secretly on a quest to find the hidden opium garden the prison warden has been growing, will learn something about himself that will change his life forever.<br /><br />Tokyo in the near future. Riki-Oh Saiga, who was imprisoned in a privatized private Kokubu prison, was a prisoner but a young man with a strong sense of justice and devotion. However, the prison operators who are obtrusive to Riki-Oh plan to kill him. Send Narumi and Yomi, who are the same prisoners and have high combat power, to thugs. Riki-Oh who shoots the deciding line of "I will carry your wrongdoing to hell !!" and greets the attacking enemy. Where is the battle going?<br />