Even as he tries to keep the student council president out of trouble, Vice President Chiga-kun finds himself being drawn to the president's strength and power. Chiga-kun wonders how he, being such an intelligent individual, can be so unwillingly taken with a boy who is so country and simple...

In the northern Kanto area in Japan, there is Binan City… At Binan High School, as per usual, the “Earth Defense Club (lol)” was a club that did nothing. The club members Kyoutarou Shuzenji, Ryouma Kirishima, Nanao Wakura, Taishi Manza, and Ichiro Dogou nonchalantly enjoyed tea while having pointless conversations that amount to nothing. All of them have now gathered at Kurotama Bath after school. When Ryouma pulls Kyoutarou Shuzenji by his arm out of water that he claims feels too good, together with his towel comes a pretty boy in strange clothing. These five boys are then dragged into a battle for the heir of the magical kingdom, Honila Land...

The older boys are graduating school and recount their memories together. The next day everyone defends the graduation ceremony against Zundar and Dadacha's Second Button Monster but Yumoto struggles using his love power.

Movie commemorating the franchise's tenth anniversary.