Image: Rebel Wolves / Bandai NamcoOfficial screenshot from Rebel Wolves / Bandai Namco.
The Manumit is a hidden achievement for uncovering everything about one of your allies. It hangs on optional quests that a single choice can lock away.
In Crake's line, complete the optional quests Distant Shadows and A Closer Look before you start Rise at Dawn. After Distant Shadows, choosing to leave him be locks the trophy out.
Keep a manual save before each optional step, and pick the option that keeps digging.
Learn all of Crake's secrets.
A Closer LookA Closer Look is the Crake questline step where you go after Marat once Distant Shadows ends badly. It is short, but it carries the bronze trophy The Manumit if you pick the right lines.
Distant ShadowsDistant Shadows is a Crake quest where Coen meets Crake at the rebels' hideout and tails Ascar through Tantari by day. Getting spotted gives a worse outcome, so take it slow and hide behind cover.
Rise at DawnRise at Dawn is the ending quest for Crake's questline, where you march on Brencis's castle with the manumit rebels. Save before you start it, because it fails every quest you have not finished.