Finding themselves facing a group of Zorima as numerous as the day they first appeared, the Kyoryugers learn that their usual attacks have no effect on the horde as Torin fears the worse of what this means. Once they destroy the Zorima, the Kyoryugers find themselves facing an even stronger Debo Monster: Debo Nagareboshi. Luckily, Kyoryu Gold's aid drives Debo Nagareboshi back. In the Spirit Base, Torin reveals that the power boost the Zorima had is a sign that Deboth, the leader of the Deboth Army, is beginning to awaken. Curious of how to deal with this series of events, the Kyoryugers are formally introduced to Kyoryu Gray, a Spirit from China. Admitting that he is disappointed in the main Kyoryugers' ability as he watched them fighting Debo Nagareboshi, he places the five in an illusion to put them through a series of trials in his arena while subjected to the Guardians' power. While Ian, Nobuharu, Souji, and Amy pass after respectively suffering the attacks Ovirappoo, Igeranodon, Archenolon, and Gurumonite Zyudenchi, they find Daigo was subjected to all four Zyudenchi at once and passed his test first. Elsewhere, after paying his respect to his fallen Zetsumates comrades, Debo Nagareboshi heads out to get revenge on the Kyoryugers. Kyoryu Gray tells Utusemimaru not to participate in the fight, and instead decides to use the Debo Monster as a final test for the main Kyoryugers. With Dogold benefitting from his power up as he accompanies the Debo Monster, Kyoryu Black, Kyoryu Blue, Kyoryu Green, and Kyoryu Pink overwhelm him and Debo Nagareboshi with their newfound will to fight. However, as Kyoryu Gray has expected, Kyoryu Red's attacks has no effect on Debo Nagareboshi, and Kyoryu Gold is forced to intervene as the Giant Zorima are formed. Luckily, Bunpachy arrives and defeats the monster much to the Kyoryugers' surprise. As Bunpachy leaves, Kyoryu Gray tells the Kyoryugers that his Zyudenryu has accepted all of them but Daigo. He explains that Daigo's lack of weakness makes him imbalanced, and Kyoryu Gray intends to give the Kyoryugers Bunpachy only if Daigo is removed from the team and Utsusemimaru made leader.