A boy named Shu is obsessed with knight masters learns that one has appeared in his village. Shu gets excited at this possibility and goes in search of him. His village gets attacked after finding the "knight master". Shu unleashes his true power after finding his friends are in trouble.

Zola and company meets the king who grants her access to the ancient library. Shu finally meets a true knight master. Bouquet arrives at the city to find it under attack from Nene's robotic shadow users. Shu and company joins the fight. An ancient scroll is stolen in the chaos and given to a mysterious character.

The battle against Logi's Independent Flying Squadron rages on as Shu, Kluke, Jiro, and Bouquet struggle to take down Cynthia while Zola and Marumaro do the same for Gilliam and his minions. When Marumaro takes down Bishop, he and Zola focus on the remaining two when Gilliam and Todd's Power Boosters overload. When this is discovered, General Logi orders Cynthia, Gilliam, and Todd to retreat, but Gilliam and Todd are shot down by Zola after Marumaro decoyed them. Despite Cynthia going into overdrive, she is defeated by Jiro anyway.

Shu and Blue Dragon are sent to the nearest town to find a blacksmith to make a replacement part for the Mechat and also to get supplies. On their way to the nearest village, Shu and Blue Dragon save a boy named Tonto from local bandits whose jewels were taken from Tonto. Upon arriving in the village, Shu meets Tonto's sister who happens to be a blacksmith. Shu has some trouble when Tonto steals tomatoes, potatoes, and apples from three local farmers and Shu had to pay for those. Shu and Tonto get into trouble with Tonto's sister when she finds out that Shu is a Shadow Wielder and Tonto had been stealing again. After dodging her hammer before she collapse in sorrow, Shu learns that Tonto's sister hates Shadow Wielders after recurring attack by Shadow Wielders from Gran Kingdom. When asked why Tonto wants to become a Shadow Wielder, Tonto's sister states that Gran Kingdom returned last year with Ivanov and Gustav demanded tribute. Shu and Tonto's sister get word from one of the farmers that the local bandits have captured Tonto. Shu and Tonto's sister managed to find their hideout as the bandits use a tank and robots they stole from Gran Kingdom to attack Shu and Blue Dragon. Due to Tonto's sister not liking Shadow Wielders, Shu is easily taken down by the bandits and Blue Dragon causes them to retreat. After recuperating, Shu finally gets that replacement part for the Mechat and defeats the bandits before rejoining with the others.

Noi starts to tell everyone about the Investiture Beings' city. At the same time, the Investiture Being leader Rudolph sends Hildegard and Fagino to attack Shu. At the same time, soldiers of the White Guardians train with the Black Shadow Type-Three robots while their Brunacks charge up. When it is charged up, it is fired at the Black Shadow Type-Three robots who lose their shadowy forms. Hildegard and Fagino have arrived on the outskirts of the city. Legolas ends up evacuating the city while the others engage Hildegard and Fagino. Elsewhere, the White Guardians start with their ceremony. Shu, Marumaro, and Bouquet unleash their shadows. Conrad, Griz, and Daner face the two Investiture Beings in unarmed combat. Hildegard uses her wind abilities on them. Back at Nirvana, Primella starts to have visions at the ceremony. While Noi is working on the database, Bouquet and Hippopotamus merge with Blue Dragon while Hildegard and Fagino bring out their dragon forms in their Shadow form. As Hildegard has her dragon use its elasticity on Blue Dragon, Bouquet and Hippopotamus split from Blue Dragon. Hildegard and Fagino counter every move that is thrown at them and managed to take them down. They even managed to detect Bouquet's invisibility as they advance toward the ruins. After destroying the city, Hildegard and Fagino assume their dragon forms and escape. With the ruins also destroyed, Shu's group and Conrad's group go their separate ways.

At a Rosekstan base, General Logi oversees the upgrades to the giant exo-suits while on Sleipnir, Matilda is given the status on the giant wall. Rosekstan's forces still try to breach the wall as Shu, Bouquet, Marumaro, and Noi arrive at the nearest village. Matilda resolves to use a powerful laser that would guarantee the wall's destruction at the price of the nearest village. As Saber Tiger is riding the others toward the giant wall, they are ambushed by Matilda and the exo-suit warriors. Not wanting Matilda's plan to happen, Shu unleashes Blue Dragon as Matilda unleashes Zephyrus.

Noi reveals himself to be one of the 'Investiture Beings', but keeps it from Shu and the others to keep their trust. The battle with Shu and Mikhail rages on again with Mikhail unleashing his Red Dragon shadow even when Marumaro and Saber Tiger throw themselves in front of Mikhail's attack. Mikhail reveals his true form as the Red Dragon itself. Meanwhile, Lotarus notices the soldiers in white approaching. The warriors Vermillion and Furioso watch the fight recapping about Primella's prediction of Albarose' destruction when Dr. Tarkovsky appears identifying the Red Dragon as Mikhail as their tri-barrel technological weapons get positioned. Mikhail ends up overpowering Blue Dragon in fusion form. Shu refuses to give up when Mikhail starts attacking Noi for breaking the rules of the Investiture Beings. Then Noi transforms into his black dragon form, revealing himself in front of Shu and initiates the forbidden fusion with Blue Dragon to gain a new dragonite form and evening the odds with Mikhail. During the fight, the soldiers in white step in firing a tri-barrel weapon called the Brunack causing Mikhail to flee. The soldiers corner Shu and co. as Vermillion introduces them as the "White Brigade" and stated that their mission were absolute destructions of all shadows.