Yashashva https://qidianwiki.wordpress.com/2018/02/10/shadow-hack/
How they work I can explain only the first five levels.
Opening points: Using energy from a crystal drawn from a dimensional monster of a level similar to yours you can open certain points on the legs, arms, wrists, and head.
Armor formation: After opening all the points of your body, you can form a 'net' of energy through your body and with the assistance of a crystal extracted from a dimensional beast of a level higher than yours you can form an armor of the same level as the crystal you used, thus increasing your cultivation.
Spoiler:
It has not yet been explained why it is only possible to use "King"/"Rainbow" class crystal to form an armor while it is Ordinary Fluxer or why it is possible, since it is not possible to go from ordinary Fluxer to Fluxer silver. lol