With the intention of appearing in an event on a southern island, the students of Four Star Academy are taking off! There, rumors about a pair of legendary dresses sleeping within the island... A story about Yume and Laura's friendship, with S4 taking the stage together for the first time. Furthermore, putting the legendary dresses into a Dress Make... A thrilling and exciting Aikatsu! story is coming to theaters this summer!
On a walk home, Keroro and Fuyuki stumble upon a hidden shrine. Upon exploring it, they end up causing damage to a shining orb within it. That night, Keroro finds a large X on his face, which causes him considerable distraught. The next morning, a breaking news story shows that the X has spread to more than just Keroro, giving the people of Tokyo telepathic abilities, including the Hinata Household and the Keroro Platoon. The Pekoponians seem to think this is a great gift, but the mark may actually be part of a Pekopon invasion older than time itself.