The day of Yuma and Chika's initiation into the Border Agency arrives. Osamu nervously stands by in support, while they draw the scrutiny of their new peers. At that time,

Yuichi Jin and the Arashiyama Unit repel the enemy. Receiving news of their elite squad's defeat, the Border Agency's headquarters starts to get nervous.

Yuichi finally reveals his "Wind Blade" technique with the Black Trigger. As his battle with A-Rank vets Kei and Soya reaches its climax, the Arashiyama Unit shows up in support and clashes with the Miwa Unit. Who will emerge victorious?!

The battle between the A-Rank attack unit and Yuichi Jin begins to rage. In the face of top-level agents, Yuichi tries to turn it into a test of endurance. But just as Shiro Kikuchihara gets by him, Yuichi's Black Trigger goes off!

Yuichi and Yuma join forces...while Commander Masamune begins to fear the power gathering in the Tamakoma Branch.

Osamu, Yuma and Chika set their sights on joining the expeditionary force. First, they'll need to win a tournament called the Rank Wars.

Yuma's revealed why he came from the other world. Chika's resolved to join the Border Agency so she can go to the other world in search of her friend and her older brother.

Yuma is invited to join the Border Agency’s Tamakoma Branch, and agrees on the condition that Osamu and Chika join with him.

Approximately four years ago, a gate to another world opened in Mikado City, and invaders called Neighbors appeared.

The first round is over, leaving eight duelists to compete for the right to face Yugi for the KC Grand Championship! Unfortunately for Jonouchi, his next opponent is Sieg Lloyd, the dashing duelist who defeated both Haga and Ryuzaki in one turn! Things may be bad for Jonouchi, but Kaiba has his hands full when all the rides in Kaiba Land go haywire! Can Kaiba find out who’s behind all the sabotages before the tournament is ruined?

It’s the second match of the KC Grand Championship as Rebecca faces the kung-fu kicking Asia champion Vivian Wong! However, there’s more at stake than just winning the duel – Yugi’s heart is on the line, whether he likes it or not! At the other end of Kaiba Land, a couple of familiar former champions sneak into the tournament, only to find themselves facing a threat that sends shockwaves throughout all the competitors!

Mysteries abound! How does Mask the Rock know all of Jonouchi’s strategies? How can Jonouchi stop the masked master when he gathers his ancient cards to unleash the fiercest monster from the great past? But the biggest mystery is: How can Jonouchi not know who Mask the Rock is?

It's Valentine's Day, which means it's time to give chocolate to the boy you like! But an unexpected face makes an appearance…

Showing the sum total of his pre-tournament training, Sawamura pitches impressively against powerhouse school Kokonoe, holding them to two runs in eight innings. Meanwhile, Ochiai still holds esteem for Furuya who wore the ace number and still continues to improve. Will Seido’s ace for this summer be Sawamura, or Furuya? What will Kataoka decide?

Fujimaru and entourage finally face Ereshkigal, the great goddess of the underworld. They ask her to save Uruk with them, but she refuses and attacks them instead. With Gilgamesh and Ishtar's assistance, Fujimaru attempts to communicate with Ereshkigal's heart, but... The fate of an intense battle is in the hands of Mash's Noble Phantasm, "Lord Camelot."