Stealth: The Offering Vault Side Story Full Walkthrough and Details | Where Winds Meet

Break in the official grounds in Kaifeng's Prosperity Haven.

[1] Speak with Sun Sheng.
When you start your conversation with Sun Sheng, you are given these "options":
・Ask what this place is
・Here to offer tribute
・Here to shop for goods
Truth is you need to select all of them to unlock "Plead and haggle."

[2] Now you can bribe Sun Sheng.
It's worth 20,000 coins. After bribing him, he pretends you're Liu Xiao who was supposed to start work yesterday.

[3] Now that you can enter the premises, speak with Zhao Feiyan.
You also have access to the Offering Hall where you can get 4 chests:
・Left Side;
・Right Side;
・Middle area; and
・Where Zhao Feiyan is.

When you talk to him, you can see what he is selling:
・Lingering Melody for 80,000 coins;
・Inner Way Note: Chest for 15,000 coins;
・Softweave Dye Powder for 10,000 coins; and
・ Inkshade Hairdye for 25,000 coins.

・Access to the Offering Hall