|Border Member Official Enlistment Day|
|Arc||Border Enlistment Arc|
|Previous||Yūichi Jin and Arashiyama Unit vs. HQ Top Teams|
|Next||Second Large-Scale Invasion|
|Chapter(s)||33 - 37|
Yūma, Chika and Osamu all go together to the Border Enlistment, which is held on January 8th every year. Yūma is sent to fight in mock battles and he defeats most of his opponents. Chika is sent for training with other C-ranked snipers. When her turn comes to shoot the target dummies she blasted a hole in the wall of the Border HQ with an Ibis. Later, Kazama challanges Osamu to a mock battle. The battle ends 0-23 and one tie, Kazama's victory.