Karina Lyle, aka Blue Rose, wants to be a singer, but had to become a hero as a requirement. Following a slip up during an encounter with an armored car thief, Karina becomes fed up with the unrewarding nature of a hero and wants to quit and just be a bar singer. While speaking to Kotetsu, he reveals he is a hero because he loves to save people, not to simply be recognised. Later, Karina ignores a call to action for a rescue at a burning oil rig to perform a gig. However, after hearing the jeers of some drunken customers, Karina realizes what Kotetsu meant and goes into action just in time to save the other heroes.