While working at the Tiger Boy with Daigo helping as part time chef, Amy greets Souji Rippukan as he orders a cream soda. However, Souji is dragged out of the restaurant by his father as he sees the youth to be straying from their family tradition of being great swordsmen as the Debo Monster Debo Royaroya captures martial artists. Souji's father fends off the monster as Kyoryu Red, Kyoryu Blue, and Kyoryu Pink arrive to take over. As Kyoryu Green arrives with Kyoryu Black following to even the odds, the Debo Monster is hit from behind by the temperamental Raging Knight Dogold as he single handily overpowers the Kyoryugers while Debo Royaroya makes a run for it. Kyoryu Green then loses his cool during the fight with a dismayed Dogold taking his leave. While at the Spirit Base, Daigo confronts Kyoryu Green about his temper as the two engage in a duel. Regardless of his opponent using the Gaburivolver, Kyoryu Green accepts defeat and reveals himself to be Souji before he takes his leave. Later, Souji finds Daigo and Amy at his home as the former tries to understand Souji's plight from his father. Having heard enough, Souji runs off into the bamboo forest where Zakutor is before Amy gives him a DeinoChaser Zyudenchi at Daigo's suggestion. By that time, Debo Royaroya captures Daigo and Souji's father. As Amy fights off the Zorima, Souji uses the DeinoChaser to catch up to Debo Royaroya at his lair. Destroying Debo Royaroya's cage, Souji frees both his father and Daigo with his variation of his house's Slashing Peerless Sword. Using the DeinoChasers, Kyoryu Green and Kyoryu Red defeat Debo Royaroya. However, threatened by Dogold, Luckyuro enlarges Debo Royaroya with Kyoryuzin formed to keep the Debo Monster from taking back his captives as Kyoryu Green joins in with his Zyudenryu Zakutor. With Dricera separating to free the captives, Kyoryuzin Stegotchi-Zakutor is formed to finish off Debo Royaroya. Later, with his father's blessing as he intends to continue the Rippukan School, Souji joins the Kyoryugers while thanking Daigo for helping him. At the Spirit Base, taking the Kentrospiker Zyudenchi with him, Ian states that he won't be joining them anytime soon.