To us... Our purpose in the "Old Border" was to connect this world to the neighbors.

Yuri Rindō about the Old Border.[1]

Old Border member (manga)

Old Border's members

Old Border (旧 ボーダー Kyū Bōdā? ) refers to Border before it went public and prior to the death of 10 of its initial members.


Before it became publicly-known, Border was a secret organization with the purpose of being an intermediary between ‘Earth’ and Neighbors. To realize this goal, Border made an Alliance with three Neighbor nations where each vows to protect each other in the case of an invasion by hostile forces.[2]

During its peak, Old Border has 19 people within its ranks. However, about five years before the start of the series, one of the allied nation was invaded by a hostile nation, and when Borders sent its forces to assist, 10 out of 19 members died, with some became Black Triggers.[3]

Some time after the incident, the surviving members separated themselves into two groups, one went on and establish the current HQ[4] while the other stayed and establish Tamakoma Branch.


Following its separation, most of its foundations were taken by Tamakoma Branch. This includes the building it uses as headquarters, the emblem and its goal.


Young Kido Young Shinoda Kiriyama Young Rindou Young Konami
Masamune Kido
Masafumi Shinoda
Takumi Rindō
Tamakoma Branch
Kirie Konami
Tamakoma Branch
Young Kizaki Young Jin Young Yuri Mato
Reiji Kizaki
Tamakoma Branch
Yūichi Jin
Tamakoma Branch
Yuri Rindō
Tamakoma Branch
Left Border
Unknown Member 1 Unknown Member 2 Unknown Member 3 Unknown Member 4 Unknown Member 5
Unknown Member 6 Unknown Member 7 Unknown Member 8 Unknown Member 9 Unknown Member 10