Kingdom Hearts: Birth by Sleep/Xehanort Reports

Reports written by Xehanort are scattered across all worlds, and must be collected in order to unlock the Final Episode (after all characters' stories are completed). Only one of each report can be found across all characters' stories; therefore, if you miss one, you must return to the world in that specific character's story. Take note that collecting them post-game also counts toward unlocking the Final Episode.

Report	Story	How to obtain
Letter	Ventus	Clear the Land of Departure.
I	Ventus	Open a chest in the Launch Deck of Deep Space.
II	Terra	Defeat Braig in Radiant Garden.
III	Aqua	Open a chest in Merlin's House at Radiant Garden.
IV	Aqua	Speak with Yen Sid at the Mysterious Tower.
V	Terra	Clear Sinister Sentinel, the fourth battle of the Mirage Arena.
VI	Aqua	Defeat Maleficent at Enchanted Dominion.
VII	Aqua	Defeat Ventus-Vanitas at the Keyblade Graveyard.
VIII	Terra	Defeat Master Eraqus at the Land of Departure.
IX	Ventus	Visit Destiny Islands (scene before the Keyblade Graveyard).
X	Ventus	Defeat Vanitas at the Keyblade Graveyard.
XI	Terra	Defeat Terra-Xehanort at the Keyblade Graveyard.
XII	Ventus	Open a chest in the Seat of War of the Keyblade Graveyard.