Pre-Series Timeline

65 years ago

 * Visa is born.

July

 * Motokichi Kinuta is born.

September

 * Masamune Kido is born.

40 years ago

 * Raymond is born.
 * Kasumi Mikumo is born.

June

 * Eizō Netsuki is born.

November

 * Takumi Rindō is born.

May

 * Katsumi Karasawa is born.

October

 * Masafumi Shinoda is born.

January

 * Shinji Fuyushima is born.

July

 * Kyōko Sawamura is born.

January

 * Haruaki Azuma is born.

24 years ago

 * Lamvanein is born.

July

 * Reiji Kizaki is born.

August

 * Kōtarō Suwa is born.

September

 * Sōya Kazama is born.

21 years ago

 * Rinji Amatori is born
 * Raizō Terashima is born.

August

 * Kei Tachikawa is born.

October

 * Daichi Tsutsumi is born.
 * Masataka Ninomiya is born.

December

 * Nozomi Kako is born.

20 years ago

 * Enedra is born.

February

 * Tatsuya Kuruma is born.

April

 * Yūichi Jin is born.

July

 * Jun Arashiyama is born.

April

 * Hiro Kitazoe is born.

May

 * Sumiharu Inukai is born.
 * Megumi Tokura is born.

June

 * Masato Kageura is born.
 * Atsushi Hokari is born.
 * Kō Murakami is born.

July

 * Isami Tōma is born.

August

 * Rin Kagami is born.

September

 * Tetsuji Arafune is born.

18 years ago

 * Izukacha is born.

January

 * Mirai Hatohara is born.

February

 * Yuu Kunichika is born.

April

 * Shiori Usami is born.

May

 * Haruka Ayatsuji is born.

June

 * Rei Nasu is born.

July

 * Kirie Konami is born.
 * Hikari Nire is born.

September

 * Tōru Narasaka is born.
 * Kōhei Izumi is born.

October

 * Shūji Miwa is born.

November

 * Yōsuke Yoneya is born.

17 years ago

 * Rokurō Wakamura is born.
 * Yūta Miura is born.

January

 * Aki Hiyami is born.

February

 * Kaho Mikami is born.
 * Mai Kitagawa is born.

April

 * Mitsuru Tokieda is born.
 * Itsuki Fujisawa is born.

May

 * Kyōsuke Karasuma is born.

June

 * Ryō Utagawa is born.
 * Takeru Yuiga is born.

July

 * Ken Satori is born.

August

 * Sayoko Shiki is born.
 * Shinnosuke Tsuji is born.

October

 * Makoto Chano is born.

November

 * Shōhei Kodera is born.
 * Taichi Betsuyaku is born.

December

 * Shirō Kikuchihara is born.

16 years ago

 * Yūma Kuga is born.
 * Tsukihiko Amō is born.
 * Hyuse is born.
 * Yōko Katori is born.
 * Hana Somei is born.

January

 * An Kobayakawa is born.
 * Hisato Sasamori is born.

February

 * Yoshito Hanzaki is born.

May

 * Osamu Mikumo is born.

June

 * Ai Kitora is born.

December

 * Yuzuru Ema is born.

14 years ago

 * Shun Midorikawa is born.
 * Izuho Natsume is born.

February

 * Chika Amatori is born.

November

 * Futaba Kuroe is born.

12 years ago

 * Vittarno is born.

10 years ago

 * Yūgo Kuga teaches Yūma "The 3 Teachings".

9 years ago

 * Kizaki's father is killed while protecting a child, supposedly by Neighbors.

6 years ago

 * Sōichi Mogami dies, using remaining trion creates a Black Trigger

September

 * Yōtarō Rindō is born.

5 years ago

 * Spinthir attacks Calvaria.
 * Karasawa joins Border.

4 years ago

 * First Large-Scale Invasion
 * Yūgo Kuga dies while saving Yūma.

2 years ago

 * Calvaria defeats Spinthir after years of war.
 * Kazama offers Kikuchihara a place in Kazama Unit, to which he accepts.
 * Murakami joins Border.

1 year ago
May December
 * Midorikawa, Kuroe, and Kitora join Border.
 * Karasuma and Usami transfer to Tamakoma Branch for unknown reasons.
 * Arafune quits being an Attacker and becomes a Sniper.
 * Osamu enrolls into Border.

Current Year
January February