A boy was successful in guessing the numbers and suits of playing cards that were faced down on the table. His friends were amazed and asked if he was a clairvoyant. The boy was called Yuji by his friends. Yuji was admired by his friends for he was rich, popular, intelligent and he could forsee anything. (Episode Title)

It happened in 1962, Yuji warned his dad not to risk his business by partnering with the man. The man convinced Yuji's father (Mr. Mitsuoka) that the economy was booming and it was the right time for business. Yuji insisted to his father that he meant it, but his father gave him a slap. Yuji could not believe his father did it to him.

Time passed and Yuji's father died maybe because of an unsuccessful business. Yuji Mitsuoka became a dirty boy walking along the streets. People talked about him about his ominousness, his friends turned back from him, and no one was kind enough to help him. Yuji happened to come back to a mansion that was once his own. Yuji saw the man who partnered with his dad. The man came to get all the Mitsuoka family's property. Yuji knew it, he tried to confront the man but he got kicked right to his stomach. He fell onto the ground where ants were trailing. Yuji suffered enough pain already. Yuji smashed the ants and even the dead butterfly. Yuji called the man as the worst speck of a bug living. Yuji opened a yellow ring of light which quickly transformed into a black ring. The man was horrified when he saw this, but that was not all. With Yuji's black gate he burned the man's car and even his own house. When everything exploded, the man ran for his life. Yuji, for the first time, enjoyed the sweet feeling of revenge.

Shirei finished telling Yuji's story to the Gate Keepers. For Shirei, Yuji Mitsuoka was the assumed Shadow Gatekeeper himself. Shirei said that he got the information from a witness (possibly the man). Yuji Mitsuoka once opened a good gate, a gate that could absorb infinite knowledge and forsee happiness. Shun thought that it was hard for Yuji to experience all the sufferings. Even so, as Bancho said, Shadow should not have kidnapped Ruriko and Megumi.

Meanwhile, down under Tokyo tower was a huge crowd of youth gathered for the general assembly of Society for Political Thought. Reiji was on the tower, enjoying the view below. Reiji was preparing for the time that he would trample "bugs" that looked down on him. Shadows of Akuma Hakushaku and Kikai Shogun appeared behind him. It appeared that they were revived by Reiji. They both said that their purpose is to make humans fight. Reiji did not care of what they say, what he wanted was to destroy every human being. Akuma Hakushaku and Kikai Shogun reminded Reiji that they were the ones who gave him dark power. Reiji knew from the beginning that he was being used by these Invader staffs. It was Reiji's turn to use them, so without further ado he absorbed Akuma Hakushaku and Kikai Shogun's shadow bodies and powers into his hand. Reiji said the famous robot-summoning sentence, "Open the gate!" Pitch dark substance released from his hand and it flew above. Above, a jet-black robot descended in front of Reiji. Akuma Hakushaku and Kikai Shogun were in the body of the robot. Reiji asked them if they enjoyed their new body.

AEGIS operators detected a huge Invader wave and it was 10,000 times stronger than the normal one. Shirei ordered his Gate Keepers to make sortie in Tokyo Tower, where the wave was detected.

Megane drove the AEGIS bus along with the Gate Keepers and Bancho. Megane saw the massive crowd before they even reached the Tokyo Tower. The Gate Keepers remembered that the Society of Political Thought was having a general assembly right then. "Testing, testing," Bancho voiced out with his megaphone. The three co-founders (Isogai, Aya, and Takanashi) of Reiji announced to the crowd that they (Gate Keepers) were the ones who tried to disrupt Reiji's speech in WHK Hall. The crowd treated the Gate Keepers as their enemy. Megane told his comrades that they would not be able to get close to the Tokyo Tower.

With the Gate Keepers being stopped by the crowd, Reiji took the advantage and prepared for his plans. Reiji used the "junk" steel Tokyo Tower as the transmitor of radio waves that would summon Invaders all over Japan. Reiji used his Shadow robot as the giver of power to the Tokyo Tower.

AEGIS operators detected the occurence of resonance, resulting to popping of Invaders everywhere in Japan. The Invader wave in Tokyo Tower greatly expanded that it did before. Shirei was greatly alarmed.

Meanwhile, the Gate Keepers still could not do anything with the crowd. They had to resort to another plan. They got an idea to use Reiko's dazzling melody. Satellite dishes popped outside the bus and Reiko started playing the piano. Reiko's music produced a calming effect on everyone. Aya, Isogai, and Takanashi were also prepared for this. Reiji mentioned to them about the weird music produced by one of the Gate Keepers. The co-founders prepared their huge satelitte dish and countered Reiko's Dazzling Melody. (The music that was playing was Shikkoku no Sekai e! ~ image song of Reiji Kageyama!) The music range of each party were fighting over each other. Bancho increased the volume and Megane warned him not to do it. Megane was late in warning Bancho and so their volume control got broken. The crowd awakened and united to turn over the bus. Shun and Fei climbed to the bus' roof and assaulted the crowd with their "no-contact" Vacuum Missile and Fire Panda. The crowd was convinced that they were ominous but not as convinced when Kaoru carried the bus with bare hands. The crowd scrambled and Kaoru threw the bus right below Tokyo Tower. Having landed below the tower, Megane ejected Gate Robo to the top.

Shun and the Gate Robo landed on top of the tower. Reiji showed up right beside the jet-black robot and greeted Shun. Shun told Reiji that he should escape because it was dangerous. Reiji laughed at Shun's stupidity for not noticing. Reiji summoned his black gate, revealing his real form — as Shadow. Shadow went inside the jet-black robot's body. Shun hardly believed it were true. Shun yelled at Shadow that he was just being controlled by the Invaders. Shadow would not listen to him, instead he attacked Gate Robo 0 with Shadow Edge. Shun was surprised when the Shadow Edge destroyed a portion of his Gate Robo's special metallic body. Shun insisted that there had to be some mistake. Shadow asked back, "mistake?" and cut a steel from Tokyo Tower. Still, Shun could not believe it; because Reiji was the one who gave him confidence. Shadow asked Shun if he knew his real name. "Yuji Mitsuoka..." uttered Shun. Having heard of this, Shadow attacked Shun. Shun prepared his Vacuum Missile but was not able to attack Shadow when he remembered how Yuji Mitsuoka suffered. Gate Robo's attacking hand was still before Shadow Robot's body. Shadow called Shun an idiot, same idiot who was sympathizing for his enemies. Shadow snapped his fingers and Megumi and the sleeping Ruriko (encased in a transparent green substance) appeared. Shadow said that Megumi helped him in capturing Ruriko. Shadow mocked Shun that he would awaken Ruriko's hatred that would result to transforming her gate of life into gate of genocide. The power of this gate of genocide was unimaginable because it could mass kill anyone in its path. Having heard of thi, Shun was infuriated. Shun prepared his Gate Robo to tackle Shadow Robot. "Too slow!" Shadow said as he submerged Shadow Robot's hand right into Gate Robo's stomach. Blood-like substance spilled all over Gate Robo's body. Shadow Robot instantly crushed the gate engine that was taken from the helpless robot's stomach. Without the gate engine, Gate Robo was nothing but scrap. Shadow thanked Shun for making his school life fun (using Reiji's kind tone). Shadow changed back to his evil tone and said that Shun's death would be his graduation. While Shadow was about to finish Shun off, snow fell and Yukino appeared. Yukino told Shun that she did not want to see Saemi in sorrow. Yukino summoned her gate of ice and snow and even though she was not even revealing its true power, Shadow and Megumi retreated. Shun called out for Ruriko but he was too late since Shadow (with Megumi and Ruriko) was already gone. Shun shedded tears and believed that he was nothing but a speck of bug as Shadow/Reiji said. Still crying, he tried starting his Gate Robo but to no avail. Snow still continued to fall in Tokyo as if lamenting with Shun.