Princess Darenanda and Arenanda were on their way to Japan on the maiden voyage of the luxury cruise ship Rosebud to deliver Muscle Carrot, a secret elixir that is said to dramatically power up superhumans, to the righteous superhumans. However, a cruel superhuman army targeting the Muscle Carrot appears and takes over the Rosebud. Arenanda escapes alone and asks Mantaro, Kid and the others for help in rescuing the captured... see more