a member of Dark Keroro's Keronian manifestation empire, alongside Dark Keroro and Shivava. Giroro remembers him as one of his old brigade's fiercest soldiers. In the end, Doruru is defeated with Giroro and Natsumi's combined efforts. Keroro Gunso the Super Movie 4 Shion Voiced by: Nana Mizuki (Japanese) Félicia Shion du Dracoon, called Shion by Momoka and her friends, initially felt alone for much of her life. Through an heirloom she inherited when her parents died, Shion learned of the Earth Dragon prophecy. She sets the events of the movie in motion by turning Tamama, Giroro, Kururu, and Dororo into dragons as part of a warrior program. Eventually learning a secret in the spellbook she used, and learning that she is not alone, she helped to stop the Earth Dragon. Terara Voiced by: Ikue Otani (Japanese) The Earth Dragon who awakens once every 5000 years to recreate the world, it was eventually held back by the Keroro Platoon, who were then turned to dragons by Shion and made to its servants. Sion eventually reasoned with it, giving it the name Terara. Terara transferred all of it energy back to Earth. A piece of the Earth Dragon is eventually born at the end of the movie, it is Terara in a Keronian tadpole form. Keroro Gunso the Super Movie 5 Io Io is one of the main characters in Keroro Gunso the Super Movie 5. He is Rana's brother and a Mana in human form. Rana Rana is of the main characters in Keroro Gunso the Super Movie 5. She is Io's sister and a Mana in human form. Mana Mana are magical spirits that lived for many years and also debuted in the fifth movie. Their appearances are small, glowing, roundish like orb creatures that come in many colors with blue pupils. Even though they have no mouth, they are usually heard saying mana. Io and Rana are mana only in human form. Manas had the power to seal Akuaku. Akuaku Akuaku is the main villain of the fifth movie and an evil spirit that loves to play pranks. When a diver managed to take away a moai statue that was keeping him inside, he escaped. He managed to defeat Alisa and her father easily. After a tough battle with Keroro and his platoon, he manages to steal Kururu's knowledge, Tamama's power, Dororo's skills and Giroro's determination by swallowing them,