This is one of the steps translated from Chinese to English via Google Chrome.
.... I think I might just wing it.

(5) Acquisition of Okun-seok

1. You must move the enemy rhythm through the clues obtained from Koru-ji .
2. When you find and deal with the Seongeun in the Red Wolgok, you can get the Okhwanseok that you heard from Gwanjungho.
3. After killing the Seer, you need to find the room where the Odyssey has survived.