The questline of Anri of Astora is a pivotal narrative thread in Dark Souls III, intricately linked to the Usurpation of Fire ending and offering unique rewards for those who follow its path. Anri's journey is one of personal struggle and destiny, and the player's interactions with them can significantly influence the outcome of their fate and the world's future.
You first encounters Anri and their companion Horace the Hushed at the Road of Sacrifices, near the Halfway Fortress bonfire. It is crucial to speak with Anri at every subsequent meeting point to progress their questline. These meetings occur at various key locations throughout the game. Anri can be found again in Firelink Shrine, offering dialogue that sheds light on their mission. Later, they will appear in the Church of Yorshka in Irithyll of the Boreal Valley, where a critical decision point may arise. Finally, Anri's journey culminates in the Darkmoon Tomb, located within Anor Londo. The player's choices and actions throughout these encounters will determine Anri's ultimate fate and unlock different narrative branches. Successfully completing Anri's questline can lead to obtaining the Sword of Avowal, a unique weapon, and is a prerequisite for achieving the Usurpation of Fire ending, which involves a ritualistic act with the Fire Keeper. Failing to speak with Anri at the correct times or making certain choices can lead to their death or the closure of their questline prematurely.