Follow the bird's gold trail through the street and onto the rooftops. Keep it in sight at each roof edge; it leads to the escort agency warehouse.

At the warehouse, follow the bird across the roof and approach the marked opening. Drop inside to the room with storage sacks and shelving.

Inside the warehouse, move to the bird statue beside the shelving on the left. Inspect it to open the concealed stairs, then follow the bird below.

In the chamber with the large brass gear wall, inspect the chair behind the bird's table. The wall turns and opens the library. Defeat the guards between the bookcases, then follow the bird upstairs.

At the long writing table upstairs, inspect the chair in front of the landscape folding screen. A bookcase opens across the desk. Go through it and pull the floor lever under the yellow wall lamp. The PS5 footage uses R2 at the lever.

Follow the bird into the opposite room. Inspect the chair at the narrow desk beneath the hanging landscape scroll. The bookcase immediately to its right opens onto the second lever. Pull the lever, then return with the bird to the gear wall and choose Open.

Return to the central chamber after opening both bookcase mechanisms. Walk into the passage between the two large gold bird statues and continue to the conversation beyond.

Approach the unconscious Feng Jisheng and choose Search for the Keepsake (F on the PC layout shown). Continue the conversation and the Lu Ban lock sequence. The lock offers a quick-unlock option after its countdown; dismiss the tutorial and use the lower-right option when it becomes available (Square on the PS5 image).