The five new members of the Earth Defense Club are relaxing in the Kurotama Bath when they encounter Karls, first prince of Honyala Land. Karls wants to rule Earth in a "happy" way, and recruits the Earth Defense Club to help him -- by making them his personal knights!
Red brings to mind sun, flame, 
heat, blazing blood, etc.
فالأحمر يذكّر الذهن بالشمس والنار
والحرارة والدماء المتّقد، إلى آخره
Rot wie die Sonne.
El rojo hace pensar en el sol,
fuego, calor, sangre ardiendo.
El rojo hace pensar en el sol,
fuego, calor, sangre ardiendo.
Le rouge, c’est le soleil,
les flammes,
Il rosso ricorda il sole, le fiamme,
il calore, il sangue...
O vermelho faz lembrar do 
sol, fogo, calor, sangue, etc.
Красный символизирует солнце,
пламя, жар, кровь и так далее.