It's the first round of the regional tournament and Aichi, who has never been in one before, is completely taken in by the atmosphere and can't play to his normal level. Then, "Three Blacks" swoop in to stand in his way!

Victorique has disappeared. The Marquis de Blois has had her taken to a remote convent known as "Beelzebub's Skull". Worried about Victorique and determined to get her back, Kazuya arranges a plan to retrieve her. On the train over, he meets other people who are also heading for the convent. They say their purpose is to experience Phantasmagoria, a secret soirée held there, but...

Tohru Miyagishi is a chef at the Kissuiso, as well as being Minko's superior. Ohana and Minko witness him and Yuina riding off together on his motorcycle. Though they were both surprised, Minko becomes even more shocked after hearing from Renji Togashi, the head chef, that Tohru won't be coming to work anymore. Nako, Jiromaru, and Tomoe come up with their own theories about what happened, but Jiromaru obtains information that leads everyone to believe that Fukuya may have hired Tohru away.

Oga hears about the legendary Tojo, the final and strongest member of Ishiyama's TKKH, from Furuichi. And right away, he goes for a showdown! Well, if he knew where Tojo was. Thanks to Himekawa's digging, Oga, Hilda, and the rest head to the beach where Tojo is supposed to be working part-time...

The Regional Tournament is finally starting! Aichi and the gang get in Shin's van and head to the tournament hall. When they reach it, Aichi is amazed at the size and starts to feel the pressure bearing down...

The alchemy of Leviathan, once the favorite of the Queen, was denounced before the entire kingdom through the manipulation of Baron Musgrave. Leviathan, furious, killed an innocent boy. Fallen from power, a person approached Leviathan trying to get him to create artificial soldiers, Homunculi, to prepare for the oncoming war...

Ohana starts a new school life with Minko and Nako. The girls bombard her with questions because she came from Tokyo, and the boys won't stop bothering her because she lives with Minko, who just happens to be one of the most popular girls in school. Yuina Wakura, a fellow classmate and the successor to a famous hot spring inn, "Fukuya," saves Ohana from the hassle. Ohana's new school life starts out quite dramatically, and she later witnesses Minko being asked out by a boy behind the school building.

Kanzaki is thinking hard about why he's unable to be a match for Oga, and tries to perfect a new special move, when Shiroyama realizes the crucial difference... Oga has a baby on his back! Shiroyama and Natsume help Kanzaki go through intense "BoB" training!

Emi starts taking an interest in Vanguard because of Aichi. One day while visiting Card Capital, Shin gets Emi to participate in a Vanguard fight for the first time!

A murder has occurred in the clock tower. As Victorique leaves the library tower to investigate the mystery written in Leviathan's book, she meets Avril for the first time and quickly gets into a fight with her. Meanwhile, Inspector Blois warns Kazuya that the academy is a place where Saubure's dark history lies sleeping and that he should back off or be in danger. Finally, a mystery man with some connection to Victorique closes in on her!

Taro Jiromaru is an unsuccessful writer who has been living at the Kissuiso for some time. Ohana throws away his draft, thinking that it was a piece of scrap paper, and suddenly disappears the next morning while preparing some staff meals. Her fellow workers worry, thinking that she might have gone back to Tokyo; however, Sui ignores them and orders for a cleaning of the entire inn. Nako heads over to Jiromaru's room in order to clean, but he insists for her to stay out.

It's the Ability Assessment tests for Ishiyama High, the den of delinquents. Oga tries studying for the test, for once. Baby Beel and Hilda have gotten used to various customs in the Human World and report on Baby Beel's growth to the Great Demon Lord.

Aichi heads out on a journey to other card shops, in order to find and fight other strong Vanguard fighters and gain experience after the Shop Tournament.

Avril has returned to the academy early on account of her infatuation with Kazuya. After seeing a movie together, the two of them come across a clock tower that's exactly the same as the one in the movie. Inside, they find the workshop of Leviathan the Alchemist. Meanwhile, at the library, Victorique is hit on the head by a falling book, which turns out to be the memoirs of none other than Leviathan!