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!
My knights of happiness!
!يا فرسان السعادة خاصّتي
Meine Ritter des Glücks!
¡Caballeros de la felicidad!
¡Caballeros de la felicidad!
Mes chevaliers du bonheur…
Miei cavalieri della felicità!
Meus cavaleiros da alegria!
Мои рыцари счастья!