Brago's spell defeats Zofis's spell, and Koko is saved from falling into the magma. Zofis tells Sherry that once his book is burned, Koko will regain her persona but will retain the memories of all her evil deeds committed with Zofis.
is the first day of the new year. Folgore and Kanchome come to Kiyo's house to tell him of a dream he had. In his dream, Victoream and his book owner scale a mountain and obtain the "Very Melon" spell, which grants him a wish from Makoto Raiku.
Sherry and Brago continue their attack on Maestro's barrier in order to test the limits of the coil. They find out "Ion Gravirei" is the limit which the coils can handle. Kiyo casts "Zagurzem" and combined with "Ion Gravirei" breaks through Maestro's barrier. At that moment, the door to the Mamodo world is completely open. He offers Zatch and Brago a chance to join him, which they refuse. Zatch uses "Bao Zakeruga" and Brago uses "Baber Gravidon" to attack Maestro. Maestro manages to hold the spells back until they combine to make a black "Bao Zakeruga" which causes ...
The team enter Faudo through his mouth with the help of Ponygon and Karudio. They follow a blood vessel to the spinal cord where they take an elevator and arrive in a room where multiple paths present themselves.
Victoream returns to his body, but his body tries to steal his own book. Kanchome is revealed to be disguised as his body in an attempt to get his book. Victoream returns to his real body and starts attacking the team.
With both sides running out of energy to cast spells, they realize the victor will be the one who uses their final spells effectively. Buzarai uses his strongest spell and Kiyo realizes "Bao Zakeruga" can not defeat it unless powered by at least one "Zagurzem".
The team runs away from the drill while dodging tentacles that melt anything it touches. Kiyo realizes there are holes on the walls of the small intestine that will lead them to the liver but only open when near the drill.
After Big Boing shows Kiyo a dance, they head to the airport to pick up; Megumi and Tia, Folgore and Kanchome, Li-en and Wonrei. While there, Kiyo, Megumi, Tia and Dr. Riddles run away from paparazzis who are after Megumi.
The team regroups and have their wounds healed by Tia. Megumi and Tia tells Kiyo they saw Wonrei and Kiyo realizes Wonrei has failed in finding a way to lift Li-en's curse and resorted to obeying Riou.
Sunbeam is told that he must go to Hokkaid for a week of training. He leaves his Mamodo Ponygon with Kiyo and Zatch. Zatch seeing how badly Ponygon wanted to go with Sunbeam helps Ponygon sneak aboard a plane.
Arth and Ellie reach the room before the control room where they are confronted by Riou. Riou uses a nearby control panel and seals the entrance to the room off so the rest of the team are not able to assist him.
They continue through the blood vessel maze and end up in a room where many different paths present themselves. Momon refuses to show them the correct passage until Elle slaps him and tells him he must be brave.
After have fun around town, Zatch finds a manga titled "Ka-chan Tazunete Sanzenri", a parody of 3000 Leagues in Search of Mother. Zatch inspired by the story, decides to go to town and search for motherly people to see if he can regain his memory of his mother.
The team while resting manage to find clean water and melons to eat. They are interrupted by the appearance of the Mamodo Victoream. Folgore, noticing how unintelligent Victoream is, tries to praise him in order to avoid a fight while everyone is exhausted from the previous battle.
They battle and Zatch is overpowered by Keith and Buzarai. Zatch manages to land a "Zagurzem" on Keith but Folgore is injured in the process. Kanchome takes Folgore and flees while Kiyo and Zatch continue the battle.
Wonrei acts strangely one day so Li-en follows him. She follows him to a store with a tv and presumes he wants to buy a television. She continues to follow him and sees him with a woman and assumes he is cheating on her.
Zatch and Ponygon are taken to a festival by Kiyo's mother. Once there, Zatch separates from them and meets up with a rich girl named Natsuko. Natsuko snuck away from her bodyguards in order to enjoy the festival.
Folgore, Kanchome, and Dr. Riddles continue their journey in the ruins. Elsewhere Kiyo realizes that stars become less accurate the further the noise is from the ceiling and that the stars rotate in a circle.
Kiyo's classmate invite him to go on a hiking trip to which he obliges. The next day, Zatch and Ponygon follow Kiyo on the hiking trip. Suzy reveals she stayed up late making a present and Suzy's friend, Mariko, grabs it presuming it is her birthday present.
As the team thinks of a way to break through the door to the control room, Kiyo and Zatch are teleported inside. Zeno reveals he is Zatch's twin brother. Kiyo asks Dufort to stop Faudo or the world will be destroyed.
The team is able to overpower Riou. Riou tells his book owner Bankis to come out and fight. Bankis is revealed to have been hiding inside Riou and once out, tells them that the timing to cast spells will be easier now.
Zatch and Kiyo are overwhelmed by Rodeux, his partner Chita, Purio and Lupa. Rein seeing Zatch courageously battle reminds him of the first time he met Zatch. In the past, Rein falls down a cliff and is badly injured.
With Penny's water spells combined with Zatch's lightning spells, they are able to gain the advantage against Delmolt. It is revealed that Delmot was only using his weak spells, and when he uses a stronger spell, he knocks Kiyo, Zatch, Sunbeam and Ponygon out.