At the Border Defense Agency's headquarters, the B‑Rank Battles are in progress with intense rivalry as every squad battles fiercely to earn a place on the forthcoming Away Mission. While Osamu Mikumo and the rest of Tamakoma‑2 have succeeded so far, the concluding stages will demand they exceed their present limits in their regimen. Welcoming a skilled newcomer, the unit starts training and formulating fresh tactics, yet during these preparations they face challenges. A quarrel erupts—threatening to cost them entry into the realm in the distant, contested zone beyond the known borders.
