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!
We are the magic knights who bring happiness!
!نحن فرسان السّحر الذين نجلب السّعادة
Wir sind die magischen Ritter,
die das HAPPY bringen!
¡Somos los caballeros mágicos
que traen felicidad!
¡Somos los caballeros mágicos
que traen felicidad!
Nous sommes
les chevaliers du bonheur !
Siamo i magici cavalieri portatori di felicità!
Somos os cavaleiros mágicos
  que trazem a felicidade!!
Мы — волшебные рыцари,
несущие счастье!