Mio Kudo

At the end of the first year of high school, Futaba Yoshioka meets Kou Tanaka who was her first love. In their middle school days, they attended the same school, but he suddenly transferred to another school. Three years later, he appears in front of her again with the different last name of Kou Mabuchi. His personality also seems to have changed from warm to cold. He is like a totally different person from three years ago. Futaba Yoshioka slowly learns what happened to Kou Mabuchi for the past three years and she become to have feelings for him again.

Scientists believe that 65,000,000 years ago, a meteorite's crash on Earth killed off the dinosaurs, but in truth, it split Earth into two parallel universes: The Earth we know is referred to as "Another-Earth" by the residents of the Earth where dinosaurs were still the superior species, Dino Earth. Overtime, the humanoid Ryujin(dino people) and Bakuryuu(mecha dinos) races came into being on DinoEarth but were at war with the Evolians, enities that emerged from the meteor. The two Earths are separate until Asuka, a Ryujin from DinoEarth, arrives on Earth via a transdimensional portal. However, he is followed by the Evolians in their Anamolicarus spaceship and the three Bakuryuus under their control. As the Bakuryuus Tyrannosaurus, Ptreranodon, and Triceratops attack Tokyo, a call is sent out to people who possess DinoGuts and the potential of gaining the power to tame the rampaging Bakuryuu. Together with their Bakuryuu partners, the three people recognized by the first three Bakuryuu become Abarangers to protect their dimension from the Evolians.