Chapter 14 / Objective: Over the Wall / Area: Sector 6 Favelas (District of Urban Promotion)
This trophy requires that you have completed all side missions. Only then will the Angel's Letter appear at the end of Chapter 14, thanking you for your services to people. Picking up this collectible card unlocks the trophy. , is a bright blue item on the main path to the last objective in Chapter 14, in sight and impossible to miss. This occurs after returning from the sewers and delivering their last side missions. , is on the narrow path, just before reaching the wall with sprayed "Avalanche". If you go to the wall, you will also receive a Point of no return notice and you can still go back.
Note: You can't just do all side quests previously and just go straight to the location. You have to complete all the side quests in the repeat chapter select again.