

A few months have passed since the VF Circuit, and Aichi is now in High School. However Aichi is in a different high school than most of his friends, a high school where the instructors focus on looking towards the future. One day Aichi admits he thinks Cardfight can be a future people can believe in, but in order to prove it Aichi must use his new deck, a deck in which Royal Paladins and Gold Paladins are combined as one force. Slowly but surely Aichi must gain friends through Cardfighting and help his new team win the newly formed high school cardfighting championships. (Source: ANN)






Months after the conclusion of the VF Circuit, Aichi enters high school as a freshman at Miyaji Academy. However, he has trouble adjusting to his new school life due to the academy's heavy emphasis on studies. After school, Aichi goes to Card Capital while being tailed by a classmate, Naoki Ishida. There, he sees the many customers playing Vanguard, which Naoki has no knowledge about. He spots Aichi conversing with Team SIT Genius in the back of the shop. Curious by how different Aichi's behavior is in the card shop compared to how he acts at school because of a card game, Naoki becomes intrigued to Vanguard. And so, Aichi teaches Naoki about Vanguard through playing an actual match, with the latter being lent a new Narukami trial deck to use from Shin. As they cardfight, Naoki slowly gets immersed into the game. After Aichi eventually wins, Naoki buys the trial deck and hastily leaves in a frustrated manner, which worries Aichi. But he is later comforted by Kai who tells him that Naoki has in fact taken an interest in Vanguard. The next day at school, Aichi is shocked when his class gets a new transfer student: Kourin Tatsunagi from Ultra Rare.
The news of Kourin transferring into Aichi's class becomes a hot topic, especially when the male classmates start talking to Aichi to get closer to her once they learn that the two know each other. Then, Aichi gets an idea on how to promote Vanguard at his school. Because there is no Cardfight Club, Aichi decides to make one himself. The next day, he tries to recruit enough members to officially start the club (needing a minimum of five people, including himself) by handing out leaflets in front of the school. His pleas fall on deaf ears until Kourin agrees to be a member. Her enlistment is followed by several other boys who want to join (only to be with Kourin), but she proposes that anybody who wants to become club members will have to defeat either her and Aichi in cardfights before they can enter. The two easily beat all of the challengers, but then Naoki steps up to play against Kourin with honest feelings of wanting to join the club. With a new Jewel Knight Royal Paladin deck, Kourin battles Naoki, who uses the Eradicator Narukami trial deck he bought a while ago. In the middle of the fight, Naoki reveals that he knew Aichi from when he was in the elementary school division of Miyaji Academy and how he felt guilty for not doing anything to help Aichi who was being bullied at the time. Naoki further explains that seeing how much Aichi has changed because of Vanguard motivated him to find something to be passionate about and ultimately change himself. In the end, Naoki defeats Kourin with the Break Ride ability of Eradicator, Vowing Sword Dragon. With that, Naoki is initiated into the newly-formed Cardfight Club, and Aichi's life in high school truly begins.
Aichi's Cardfight Club is attracting attention all around the school as male classmates (who are mostly interested in being with Kourin) have him teach them the rules of Vanguard and again attempt to play against Kourin in order to be inducted to the club but to no avail. Additionally, the female students gossip about a rumor that claims Aichi only started the club to get close to Kourin, which makes Misaki worry. Aichi tries to ask Misaki to join the club, but she declines because of her job at Card Capital. Kourin gets an unsettling feeling that there is someone watching her, with Naoki suspecting that it could be a stalker. Naoki eventually confronts the stalker who turns out to be a classmate, Shingo Komoi. Naoki threatens to beat him up, but Shingo suggests to settle things with a cardfight instead. Despite modifying his Narukami deck, Naoki's inexperience at Vanguard causes him to struggle against Shingo's Murakumo deck. After some taunting from Shingo, he reveals that the one who he has been watching is not Kourin, but it is actually Aichi, who he highly admires. Shingo defeats Naoki, who recommends for him to become a member of the Cardfight Club. Aichi and Kourin let Shingo join, thus bringing the total members to four. Unbeknownst to Aichi and his friends, another student observes them from afar and then walks away with the intention of reporting the Cardfight Club's disruptive behavior to the student council president...
The student council president of the Miyaji Academy High School Division deems Aichi's Cardfight Club to be unnecessary for the school and orders the vice president, Suwabe, to devise on how to abolish it. Elsewhere, the Cardfight Club finds an empty classroom to serve its official headquarters. Then, the school's American football team, the Miyaji Vipers, barges in and takes the club outside to the academy's sub-ground where the Vipers' quarterback/captain, Ikki "the Catapult" Kongou, challenges Aichi to a cardfight, with the former appropriately using a Spike Brothers deck. This is an elaborate plan set up by Suwabe to have Ikki defeat Aichi and thereby crush the Cardfight Club members' spirits into not wanting to continue the club. Ikki uses strong Limit Break effects of the latest Spike Brothers to push for victory, but Aichi successfully defends and makes it to his next turn. Aichi then utilizes both the Break Ride of Solitary Liberator, Gancelot and the Limit Break of Liberator of the Round Table, Alfred to overpower and beat Ikki. This loss causes the football team's female cheerleaders to dump Ikki and the Vipers, which devastates them. Later, Naoki asks Ikki's motive for challenging the Cardfight Club, to which he answers that while he was bribed by the student council with a bigger budget for the football team, he mainly did it for the sake of playing against a strong cardfighter like Aichi. The Vipers then take their leave, and the Cardfight Club is more motivated to find a fifth member to have the club become official before the student council acts again.
After Aichi tells his friends at Card Capital about how his school's student council is causing problems for the Cardfight Club, he repeatedly requests for Misaki to join as the fifth member. However, she still turns him down, having mixed feelings on the matter and being insulted by Kourin for not being serious on becoming a member. Then, to quickly shut down of the Cardfight Club, the student council creates a deadline for all potential clubs with at least five members to report to the council, or else they will not be officially recognized by the school. At the last second, Misaki declares herself as the Cardfight Club's fifth member after resolving her feelings of earnestly wanting to join the club. As an initiation test and to prove herself to Kourin, Misaki cardfights Aichi. With her new Genesis deck, Misaki uses the Limit Break abilities of both Eternal Goddess, Iwanagahime and Battle Deity of the Night, Artemis to eventually defeat Aichi and becomes a proper member of the Cardfight Club. However, when Aichi and his friends go to the student council to gain official status, the council denies them because the club does not have a faculty advisor. Nonetheless, the student council president proposes another method for the club to be recognized: produce results by winning against other high schools' cardfighting teams. Aichi agrees to the terms, and so the president arranges for the Cardfight Club's first opposing team, which has familiar-looking members...
Miyaji Academy's unofficial Cardfight Club is set up to have an intramural match against Hitsue High School's Vanguard Club, in which Kai, Miwa, Morikawa, and Izaki are members. The two teams play in a best-of-5 match, and opponents are randomly selected. Under the conditions that the Miyaji Academy student council president created, if the Cardfight Club loses this match, then it will be dissolved. In the first game, Naoki fights Kai, with both using Eradicator-themed Narukami decks. Naoki combines both the Break Ride of Eradicator, Vowing Sword Dragon and the Limit Break of Eradicator, Gauntlet Buster Dragon to retire Kai's units and gain more critical value and power, but Kai manages to survive the assault. Then, Kai uses a similar devastating combo with Vowing Sword and Eradicator, Dragonic Descendant. Although Naoki blocks his first attempt, Kai activates Descendant's Limit Break to have it stand up, gain another critical, and attack again. Unable to defend this attack, Naoki loses, thus putting Hitsue High up 1-0. For the next fight, Kourin is chosen to battle Izaki (which leaves Morikawa extremely envious).
Kourin defeats Izaki, which ties the score 1-1. The third game pits Misaki against Hitsue Vanguard Club's ringer and old Q4 teammate, Kamui Katsuragi. Although Kamui gets an early lead, Misaki mounts a comeback with Battle Deity of the Night, Artemis. Kamui then combines the Break Ride of Beast Deity, Ethics Buster and the Limit Break of Ultra Beast Deity, Illuminal Dragon to stand four of his rear-guards to launch multiple attacks in one turn. However, Misaki protects herself, only taking one point of damage from Kamui's five attacks. In what seems to be a hopeless situation, Misaki rides Eternal Goddess, Iwanagahime and uses its Limit Break to retire Kamui's front-row units. Weakening Kamui's defenses, Misaki wins and puts Miyaji Academy up 2-1. In the fourth game, Shingo is selected to fight against Miwa. Before the fight, Shingo underestimates Miwa, which ends up being his undoing when Miwa demolishes him and evens the score 2-2. So, it's Aichi vs. Morikawa in the fifth and final game that will decide the fate of the Miyaji Academy Cardfight Club. Given Morikawa's reputation, Misaki thinks that this will be an easy win for Aichi. However, after the two fighters reveal their first vanguards, Aichi is surprised to see Morikawa using Kai's Kagero deck (although Morikawa is not particularly glad about this).
Aichi faces Morikawa in the last fight of this intramural match. Although initially mad with using Kai's Kagero deck and not his own, Morikawa nonetheless puts a great amount of pressure on Aichi. All the while, Kai watches the fight as an opportunity to see if his Kagero deck is strong enough against the current Aichi, who strikes back with the Break Ride of Solitary Liberator, Gancelot to empower itself and his rear-guards. Morikawa defends and makes it to his next turn, in which he rides Dragonic Overlord the End. Pairing its Personablast with the Break Ride effect of Dauntless Drive Dragon, Morikawa attacks Aichi with the End three times in a row. Determined to win for the sake of the Cardfight Club, Aichi withstands the onslaught and then uses Gancelot's Break Ride again on the following turn to land a final blow. Aichi emerges victorious over Morikawa, meaning that the Miyaji Academy Cardfight Club wins the intramural match. Aichi and his friends are then congratulated by Hitsue Vanguard Club, with Kai coming to the conclusion that Aichi has indeed grown stronger, perhaps moreso than himself. In spite of being irritated by the Cardfight Club's victory, the Miyaji student council president allows the club to become official and also provides the club with a faculty advisor: Mr. Nakamurabashi, who is clueless about Vanguard. Nevertheless, now that the Cardfight Club has been made official, Aichi and his fellow members look forward to what the future holds for the club.
Now that the Cardfight Club has become official, the new faculty advisor Nakamurabashi makes the club decide on a captain and vice-captain for the club by order of the student council president. Since Aichi was the person who started the club, he reluctantly accepts the position of captain. As for who should be the vice-captain, Shingo is the only person who honestly wants the job while the others are apathetic on the matter. Not wanting to make a hasty decision, Nakamurabashi recommends to hold off until tomorrow on who to elect for vice-captain. After school, Misaki is convinced by her friend Akari to try out for vice-captain. The same happens with Kourin being persuaded by Takuto. The club meets the next day, and when Nakamurabashi asks again for who wants to be the vice-captain, Shingo, Naoki, Misaki, and Kourin all raise their hands. To finally settle things, the four cardfight each other with the overall winner becoming the vice-captain. Misaki defeats Shingo, but Naoki suffers a terrible loss against Kourin. Before the final faceoff between the two girls, Naoki expresses his frustration by saying how bad he feels after finding a passion in Vanguard and yet not initially caring for becoming vice-captain of the Cardfight Club. However, he soon gets over his mortification with a smile. Noticing Naoki's enthusiasm, Misaki, Kourin, and Shingo (much to his chagrin) agree to have Naoki be the vice-captain. As the club walks home from school, Naoki impulsively runs towards a riverside, followed by Aichi and Shingo, where Naoki and Shingo scuffle a bit in the river before all the boys let out one big yell at the sunset.
Shingo tells Naoki about a Cardfight Circle formed in the middle school division of Miyaji Academy. Shingo suggests that the two of them should pay a visit to the circle and build a relationship between it and the Cardfight Club. Naoki agrees, but he is unaware of Shingo's scheme; he plans to use this as his chance to impress the underclassmen and take them under his wing, thereby raising his status over Naoki. The two go to the Cardfight Circle's clubroom where they meet Emi and Mai, who are two of the three members of the circle. Naoki and Mai play a friendly match, in which Naoki shockingly loses to Mai's Bermuda Triangle deck. After the game, he asks her for advice in a somewhat intimidating fashion. But this earns him to be reprimanded by Misaki, who later enters with Aichi. Not knowing that Aichi and Emi are siblings, Shingo gets offended when he hears Emi talking to Aichi in a casual manner, which causes her to get mad with Shingo. This leads to a cardfight pitting Emi, using a PR♥ISM-themed Bermuda Triangle deck, against Shingo, who is using a Narukami deck this time. Although Shingo deals 5 damage to her, Emi nonetheless uses the Break Ride of PR♥ISM-Image, Vert to empower her vanguard PR♥ISM-Promise, Labrador and then returns three of her rear-guards to her hand. She then activates the Limit Break of Labrador to call three rear-guards from her hand to the field, which gives Labrador more power and critical value. Along with getting a critical trigger, Emi thoroughly defeats Shingo. Just as he requests for Aichi to avenge him, Ultra Rare's Rekka Tatsunagi appears in a Miyaji Academy uniform.