Chika starts destroying buildings outside the area where Osamu has set the trap. When Yuma puts Kakizaki Unit in a corner, Kakizaki remembers his past and tries to fight back against Yuma with strong will.

Yuma, Oji and Ikoma fight each other fiercely while the battle between the snipers comes to an end. Later, Hyuse shows Border agents that he is highly skilled in the use of sword to be considered a rookie.

Inside the Border HQ, the battles begin: Gatlin and Ratarikov v. 4 strong attackers near the dock, Wen So v. Nasu and Kumagai in a hall. Outside the HQ, the teams struggle with some drones that move like humans. Meanwhile, Jin is surprised that Yotaro follows Hyuse with Raijinmaru.

Tamakoma Second fights in a match against Oji Unit and Ikoma Unit. They have only three matches left, and need to be in the top two. Meanwhile, Hyuse attends the Border enlistment ceremony.

Yuma attacks Oji Unit. Besides, Ikoma and Mizukami catch up with them and Ikoma uses his special technique to strike them a hard blow. At a disadvantage, what are Oji unit's next tactics?

Aftkrator have ordered Galopoula to make Border stuck, so Galopoula's Expeditionary Force tries to break into Border HQ to destroy the ship for the expedition. Hyuse goes to meet them secretly in order to go back to his homeland.

Border and Galopoula's Expeditionary Force play mind games reading each other's thoughts while fighting. Reghindetz is frustrated that his diversionary plan is not working.

About the time Jin brought Hyuse into Border HQ, Tamakoma Second started the match against Katori Unit and Kakizaki Unit. Osamu and Chika support Yuma with their new techniques, and try to create momentum.

Fumika Teruya prioritizes getting to Chika. Yoko Katori recalls the day her and Hana's fate changed as she fights against Osamu.

Border fights off the enemy one by one, but Gatlin and Ratarikov have no intention of giving up on completing their mission. Hyuse talks to Reghindetz, and Yotaro finally catches up with him.

Osamu negotiates with higher-ups to get permission to include Hyuse in his team. Instead of allowing it, Commander Kido tells them that he is going to let Chika join the expedition force, regardless of their rank in the rank battles.

The match was over. A party is held at the Tamakoma branch to celebrate their victory, and then Hyuse offers himself to join their team as the second attacker until he arrives in Aftkrator. Tamakoma Second accepts his proposal and Osamu begins negotiation with the higher-ups of Border.

Tamakoma-2 and Ninomiya Squad, the last two teams left, have a head-to-head fight. Ninomiya Squad awaits Tmakoma-2's action. Yuma and Osamu begin their attack simultaneously, which means Tamakoma-2 sets about their last showdown! B-Rank Wars Round 8 is finally coming to its end! What will be the result of this fateful match?

Yuma defeated Viza, but he has a few Trion left. Miwa was moved away from Osamu by Mira's trigger. Now there are only seven seconds left until the turning point of the future!

The match seemed that it would favor the unit with the most snipers, but Arafune Unit is being driven into a corner by rest of two units. Arafune used to be an attacker, so he launches an attack on Yuma, with a sword type trigger Kogetsu.

Osamu hears from Replica about why Yuma came to this world, and from Chika about her true feelings.

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 Border brass puts together a strategy based on Replica's information about Neighborhood. Meanwhile, Yuichi Jin senses impending danger for Osamu and asks Shuji Miwa for help. A massive battle with the Neighbors is about to begin in Mikado City!

After Hyuse's dropout, a melee unfolds as the surrounding teams take on each other. While intense battles progress, the number of surviving agents keeps decreasing, which is a huge setback for Tamakoma-2, who needs three more points... The fateful B-Rank Wars Round 8 reaches its final phase!

Commander Kido fears that Tamakoma branch will become too powerful. He orders A-rank agents who belong to the headquarters to take Yuma's black trigger.

Tamakoma Second's next opponents are the 13th place, Nasu Unit, and the 9th place, Suzunari First Unit. Yuma gets a chance to challenge the attacker of Suzunari First, Kou Murakami to a solo match.

The Rank Battle started. Nasu Unit takes tactical actions as planned in the storm. However, Chika's sniping changes the whole situation.

A-rank agents Shuji Miwa and Yosuke Yoneya make an assault on Yuma without even asking what happened. Osamu calls Jin to help.

With Shuji's squad singlehandedly defeated, the Border Agency's executives order Yuichi to defeat Yuma and recover the Black Trigger. Osamu worries about Yuichi's impending clash, while a secret hidden by Yuma is slowly exposed.

Osamu, Yuma and Chika decide to join Tamakoma branch to go to Neighbor world as A-rank agents of the expedition force. They go into rigorous training from Tamakoma First Unit in order to become A-rank agents.