You thought your neighbors were bad...but at least they're not aliens trying to kill you!

Earth is under constant threat from Neighbors, invincible monsters from another dimension that destroy our way of life. At least we have the elite warriors of Border, who co-opt alien technology to fight back! Meet agent Osamu Mikumo, not the best, but along with his Neighbor friend Yuma, he’ll do whatever it takes to defend life on Earth as we know it.

The Rank Wars match against Kakizaki Squad and Katori Squad continues, and Tamakoma-2 isn’t pulling any punches. The other two squads seemingly don’t stand a chance against Osamu and Yuma’s new combination technique! Could this be the push Tamakoma-2 needs to sweep the competition? And what’s this about a new squad member joining them?!