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!
Return to happiness!
!عد إلى السّعادة
Bring das Glück zurück!
¡Regresa a la felicidad!
¡Regresa a la felicidad!
Reviens, bonheur !
Ritorna alla felicità!
Retorne para a felicidade!
Стань счастливым!