Quick answer: Shopkeeper Niu gives you the Huang Manor Key at the Order’s Tavern in Pangzhen, about 30 m from the Myst’s Tavern bell. It opens the front gate of the Huang Manor.
Where to get the Huang Manor Key
Shopkeeper Niu gives you the key at the Order’s Tavern in Pangzhen, about 30 m from the Myst’s Tavern bell. He is not there on your first visit: if you cannot find him, come back after moving the area on. He asks Soul to look into the Huang family, and agreeing gives you the key.
The same lead ties into the tale A Brother Once More.
Huang Manor Key item card
The item card reads:
Key to the front gate of the Huang Manor, adorned with a gold auspicious cloud charm. It appears to be worth a fair sum.
What the Huang Manor Key opens
Use the key to unlock the front gate of Huang Manor. It is one of the game’s several keys; the complete Phantom Blade Zero key list covers the others.
After finishing at the manor, return to Shopkeeper Niu and give your report. He says Jin and Xiu took revenge for their mother, then adds that a worker spotted Jin at Meigu Lake, near the Lu Village shallows.
