The secondary class chosen for this walkthrough is ritualist because its qualifying quest also uses Panjiang Peninsula. Other combinations of professions will provide the same amount of cheap snw vis from quest rewards, but this combination provides those rewards faster than most.

Go to the waterfall area ("Appearance of the Naga"), watch for a quest update, and start killing the nagas beyond the point at which it happens. Use Armor of Earth to help endure the spells from the last group of them.

Once the naga quest updates to show that you’re ready to collect your reward, map to Tsumei and enter Panjiang Peninsula.

Talk to Herder Tsiyingju ("A Belt Pouch") and defeat the Crimson Skulls nearby. Then talk to Herder Tsiyingju again for a quest update.

Talk to Ang the Ephemeral ("Track Down Ang the Ephemeral") and complete that quest (50g).

Do Ang's quest, opening each of the five boxes in turn and defeating the spirits inside. Talk to Ang (50g, 1 monastery credit).

Map to Shing Jea. Talk to Neing the Tanner (75g and a belt pouch) and Captain Zinghu (75g, 1 monastery credit).

Enter Linnok Courtyar and talk to Master Togo (50g).

Talk to Togo again and choose Ritualist as your secondary profession, and talk to him again to complete the quest (250g, 1 monastery credit). Don't bother requesting the "A Formal Introduction" quest.