Slave Knight Gael is a character who plays a significant role in the DLC’s storyline. He is a knight who has endured countless battles and hardships, and his quest is integral to the expansion’s plot. Without giving away too many spoilers, Gael is on a mission to find the Dark Soul of Humanity, and players must confront him as they progress through the DLC.
“Slave Knight” likely refers to a character or concept from the video game series Dark Souls, specifically Dark Souls III. In Dark Souls III, there is a DLC (downloadable content) expansion called “Ashes of Ariandel,” which introduces a character known as Slave Knight Gael.
Gael’s character is known for his haunting and challenging boss battle, which is considered one of the most difficult in the Dark Souls series. As with many characters in Dark Souls, Gael’s story is shrouded in mystery and is revealed gradually through in-game lore and dialogue.