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!
The Suddenness of HAPPY! KISS
HAPPY Recipe
HAPPY Ice Cream
It's A Wonderful HAPPY
HAPPY and Beautiful
HAPPY Identity
Let's happy kiss our way to HAPPY Flutter Kicks
HAPPY Endless Summer
HAPPY Dice
HAPPY Old Men
One Centimeter to HAPPY
Always HAPPY in the Heart!