After obtaining the book, continue forward. Shielded enemies will appear ahead. In the early game, we can only deal with shielded enemies by using their Blue Light skills to perform a Perfect Parry, triggering Ghost Step to flank and attack from behind.
Defeat it by using Blue Light Perfect Parry frequently, and the red threads on the main path will disappear. Don't forget to grab the chest behind you; it contains important cultivation materials (collecting all four pieces increases our Killing Intent cap by 10%).
There are also enhancement materials to the right of the chest.

