Yuusuke Yamamoto is a Japanese director and storyboard artist. He is not to be confused with the actor, the composer or the director of photography who share the same name.
This story revolves around a spirited, carefree boy named Kazuma Harukaze, who lives with his little sister Sakura and his horse Lovely on a farm within sight of Mt. Fuji. One day, a "meteor" lands nearby, and it turns out to be Hinkeeru — a messenger from Muzanda who has come to warn Earth of a grave danger — and a robot horse named Robony.
Sergeant Keroro and his four subordinates came from the planet Keron to the Earth to conquer. However, without notice, they began to enjoy the life on the Earth. Keroro was supposed to stay with Hitana to get the chance to conquer the Earth, but he became friend with Hinata's son, Fuyuki. Today, as usual, Keroro goes to buy his favorite Gundam plastic model with Fuyuki. On their way home, they find a small shrine, and enter. There, they find a vase, and happens to break it. Since the next day, strange things happen all over the town and people are in panic. Inside the vase, Kiruru, Keron's ancient ultimate weapon was sealed. At the moment, Mirara who holds the secret of the Kiruru appears and informs them of the only method to save the Earth. However...
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.
