Captain★Rainbow

Captain★Rainbow, a superhero from Mameruka, becomes outdated and forgotten when a new hero moves into town. His alter ego, Nick, decides to head for mythical Mimin Island, a place rumored to be able to make anyone's dream come true! While on a raft sailing to the island, he sees something drowning in the water! He quickly transforms into Captain★Rainbow and attempts to rescue it...but he fails, and loses his vital transformation belt. He wakes up on the beach of Mimin Island with a strange brace...