World Trigger's Story Arcs

Border Saga[edit | edit source]

Introduction Arc[edit | edit source]

Introduction arc

Yūma Kuga transfers to Mikado City's third junior high school, where he meets Osamu Mikumo. Yūma learns of Border and the Neighbor invasions, and reveals that he himself is a Neighbor.

Manga Anime
Number of Chapters 16 Number of Episodes 8

Black Trigger Capture Arc[edit | edit source]

Black Trigger Capture Arc

Yūma's identity as a Neighbor is outed to Border, who sends their best units to assassinate him and take his Black Trigger. However, he was recruited into Tamakoma Branch by Yūichi Jin, who joins force with Arashiyama Unit to protect his new junior.

Manga Anime
Number of Chapters 16 Number of Episodes 8

Border Enlistment Arc[edit | edit source]

Border Enlistment Arc

On Border's Official Enlistment Day, Yūma and Chika Amatori finally make their debuts, while Osamu battles Sōya Kazama, calling attention to their group. Later, Osamu and Yūma battle Shun Midorikawa, and are afterwards called to a meeting regarding an upcoming invasion.

Manga Anime
Number of Chapters 11 Number of Episodes 5

Large-Scale Invasion Arc[edit | edit source]

Large-Scale Invasion Arc

A group of humanoid Neighbors, later identified as being from Aftokrator, invade Mikado City in search of Trigger users. Based on Jin's predictions, Border fights to protect civilians and C-rank trainees.

Manga Anime
Number of Chapters 42 Number of Episodes 16
  1. Large-Scale Invasion
  2. Large-Scale Invasion 2
  3. Large-Scale Invasion 3
  4. Large-Scale Invasion 4
  5. Large-Scale Invasion 5
  6. Large-Scale Invasion 6
  7. Osamu Mikumo 7
  8. Ai Kitora 4
  9. Chika Amatori 4
  10. Tamakoma First
  11. Aftokrator
  12. Tamakoma First 2
  13. Kazama Unit
  14. Large-Scale Invasion 7
  15. Large-Scale Invasion 8
  16. Large-Scale Invasion 9
  17. Large-Scale Invasion 10
  18. Large-Scale Invasion 11
  19. Aftokrator 2
  20. Large-Scale Invasion 12
  21. Large-Scale Invasion 13
  22. Large-Scale Invasion 14
  23. Large-Scale Invasion 15
  24. Large-Scale Invasion 16
  25. Aftokrator 3
  26. Osamu Mikumo 8
  27. Large-Scale Invasion 17
  28. Large-Scale Invasion 18
  29. Large-Scale Invasion 19
  30. Large-Scale Invasion 20
  31. Kyōsuke Karasuma
  32. Large-Scale Invasion 21
  33. Shūji Miwa
  34. Large-Scale Invasion 22
  35. Yūma Kuga 9
  36. Large-Scale Invasion 23
  37. Replica 3
  38. Large-Scale Invasion 24
  39. Osamu Mikumo 9
  40. Yūma Kuga 10
  41. Osamu Mikumo 10
  42. Osamu Mikumo 11

B-Rank Rank Battles Arc[edit | edit source]

B-Rank Rank Battles Arc

After the invasion, Yūma and Chika officially become B-rank agents, and form Tamakoma Second with Osamu as the captain and Shiori Usami as the operator. The unit joins the rank battles in order to become one of the top two B-rank teams and join the Expedition Force.

Manga Anime
Number of Chapters 34 Number of Episodes 21

Galopoula Invasion Arc[edit | edit source]

Galopoula Invasion Arc

Meanwhile, Border's A-rank units and free B-rank units thwart an expedition from Galopoula and Rodochroun to destroy Border's Expedition Ship. Out of necessity for the team, Hyuse is slated to join Tamakoma Second.

Manga Anime
Number of Chapters 16 Number of Episodes 5

B-Rank Rank Battles Arc - Part II[edit | edit source]

B-Rank Rank Battles Arc

Tamakoma Second continues to fight in the rank battles in order to become one of the top two B-rank teams and join the Expedition Force.

Manga Anime
Number of Chapters 63 Number of Episodes ??
  1. Katori Unit
  2. Tamakoma Second 9
  3. Tamakoma Second 10
  4. Tamakoma Second 11
  5. Tamakoma Second 12
  6. Kuniharu Kakizaki
  7. Osamu Mikumo 14
  8. Yōko Katori
  9. Tamakoma Second 13
  10. Tamakoma Second 14
  11. Hyuse 2
  12. Osamu Mikumo 15
  13. Chika Amatori 6
  14. Tamakoma Second 15
  15. Tamakoma Second 16
  16. Tamakoma Second 17
  17. Tatsuhito Ikoma
  18. Tatsuhito Ikoma 2
  19. Ōji Unit
  20. Kazuaki Ōji
  21. Tamakoma Second 18
  22. Tamakoma Second 19
  23. Hyuse 3
  24. Hyuse 4
  25. Tamakoma Branch 4
  26. Tamakoma Branch 5
  27. Yuzuru Ema 2
  28. Tamakoma Second 20
  1. Osamu Mikumo 16
  2. Tamakoma Second 21
  3. Suzunari First 2
  4. Suzunari First 3
  5. Tamakoma Second 22
  6. Tamakoma Second 23
  7. Hyuse 5
  8. Hyuse 6
  9. Azuma Unit
  10. Azuma Unit 2
  11. Hyuse 7
  12. Eizō Netsuki
  13. Osamu Mikumo 17
  14. Ninomiya Unit
  15. Chika Amatori 7
  16. Kazuma Satomi
  17. Takuma Yuba
  18. Tamakoma Branch 6
  19. Tamakoma Branch 7
  20. Yuba Unit
  21. Ninomiya Unit 2
  22. Hyuse 8
  23. Yuba Unit 2
  24. Hyuse 9
  25. Chika Amatori 8
  26. Yuba Unit 3
  27. Yuba Unit 4
  28. Masataka Ninomiya 3
  29. Masataka Ninomiya 4
  30. Osamu Mikumo 18
  31. Chika Amatori 9
  32. Tamakoma Second 24
  33. B-Rank Middle Group Final Round
  34. B-Rank Middle Group Final Round 2
  35. B-Rank War's End

Expedition Selection Exam Arc[edit | edit source]

Expedition Selection Exam arc
Manga Anime
Number of Chapters Number of Episodes

Anime-Exclusive[edit | edit source]

Fugitive Arc[edit | edit source]

Fugitive Arc

Tamakoma Second attend the training camp in Shizuka City. They meet Xeno, a genius Trion Soldier engineer, along with Lilith, a Trion Soldier, who are fleeing their planet - Ergates. Gieve and Charon were chasing after them in order to retrieve Lilith to prevent information on Trion Soldier technology from getting leaked. Tamakoma Second cooperate with Xeno and Lilith to stave off Gieve and Charon's attacks while awaiting an opportunity to leave Earth.

Manga Anime
Number of Chapters N/A Number of Episodes 15
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