In Chapter 2 of Black Myth: Wukong you can find a drunken boar NPC that asks you for items to sober it up. Completing this side quest leads to the Chapter 2 Secret Area “Kingdom of Sahi”.

Step 1: Fright Cliff > Rockrest Flat: from this shrine go straight and talk to the drunken boar, he sits in the big round meadow area.

Step 2: Yellow Wind Formation > Windrest Bridge: from this shrine go straight across the bridge, then go left where houses are, then turn right into a courtyard. In a house in the left corner is a golden glowing keg, destroy it to get “Sobering Stone” key item.

Step 3: Fright Cliff > Rockrest Flat: Return to the boar where you first met him, deliver the Sobering Stone, exhaust all dialogue until he repeats the same line.

Step 4: Crouching Tiger Temple > Temple Entrance: from this shrine go up the stairs and enter second path on the right, talk to boar there, give him 1 Jade Lotus (you can buy it from the shrine store). Exhaust all dialogues with the boar until he repeats the same line.

Step 5: Fright Cliff > Rockrest Flat: Return to where you first met the boar, his brother “Yellow-Robed Squire” will spawn in that area, defeat him. If he’s not hostile, make sure to first defeat the boss “First Prince of Flowing Sands” (he’s found in Chapter 2 > Sandgate Village > Valley of Despair: From this shrine take the path to the right to enter a cave. After two enemies, in the next cave section turn left to trigger a cutscene. The small rat boss from earlier will appear and summon this new boss).

Step 6: After the fight, follow the boar to the big gate on the side of the area. You can now interact with it to reach the secret area “Kingdom of Sahi”. The next boss is the secret version of “Tiger Vanguard“, defeat him.

Step 7: After this you will enter a huge desert area. On top of the cliff stands an NPC, talk to him. It will trigger a cutscene in which he summons the Fuban boss. Defeat Fuban to earn the Shifting Sands trophy.

This finishes the secret area of Chapter 2. You get the Wind Tamer vessel as a reward, it’s very useful against flying bosses.