Border Saga

Canon

 * Introduction Arc (Chapters 1 - 16, Episodes 1 - 8)
 * Black Trigger Capture Arc (Chapters 17 - 32, Episodes 9 - 16)
 * Border Enlistment Arc (Chapters 32 - 43, Episodes 17 - 21)
 * Large-Scale Invasion Arc (Chapters 44 - 85, Episodes 22 - 37)
 * B-Class Rank Battles Arc (Chapters 86 - ?, Episodes 38 - ?)

Filler

 * Fugitive Arc (Episodes 49 - ?)