To farm Fine Gold Thread for armor upgrades in **Black Myth: Wukong**, you can follow these detailed steps:

### 1. **Purchase from Keeper’s Shrine Store**
– **Method**: Buy Fine Gold Thread from the Keeper’s Shrine Store.
– **Availability**: This method becomes available in mid-Chapter 3 and continues throughout the game.
– **Cost**: Each Fine Gold Thread costs 3,000 Will.
– **Location**: Access the Store option after interacting with a shrine. The store is regularly updated as you progress in the game, so check it frequently.

### 2. **Defeat Specific Bosses**
– **Method**: Defeat certain bosses to obtain Fine Gold Thread.
– **Bosses**:
– **Cyan Loong** in Chapter 3 (hidden area in Bitter Lake) drops x2 Fine Gold Thread.
– **Yellow Brow** in Chapter 3 drops x2 Fine Gold Thread.
– **Buddha’s Right Hand** in Chapter 4 drops Fine Gold Thread.
– **Bishui Golden-Eyed Beast** in Chapter 5 drops Fine Gold Thread.
– **Poison Chief** and **Water-Wood Beast** in Chapter 6 (Foothills region) have a chance to drop Fine Gold Thread, with Poison Chief having a higher chance.

### 3. **Explore and Open Chests**
– **Method**: Explore various areas and open chests to find Fine Gold Thread.
– **Locations**:
– **Demon King’s Castle**
– **Merchant Caravans**
– **Ancient Ruins**
– **Turtle Island**
– **Webbed Hollow** (specifically near The Verdure Bridge Keeper’s Shrine).

### 4. **Farm in New Game+**
– **Method**: In New Game+, Fine Gold Thread will be available to purchase from Shrines starting from mid-Chapter 3.

### Additional Tips
– **Equipment**: Equipping the Skull of Turtle Treasure Helmet and Golden Carp Curio can increase your chances of getting a rare Fine Gold Thread drop.
– **Respinning Bosses**: In Chapter 6, you can farm Fine Gold Thread by fighting respawning bosses like the Poison Chief, which has a higher chance of dropping the material.

By following these methods, you should be able to gather enough Fine Gold Thread for your armor upgrades in **Black Myth: Wukong**.