Indeed, it is this...
The Pangolin stopped at the foot of the mountain. The path ahead was sealed off, and the clean, tidy stairs rendered its Filth Concealment almost ineffective. Additionally, an invisible barrier prevented the Pangolin from entering.
Activating 'Spiritual Vision' was out of the question; it would only turn the screen golden with no other effects. Many visitors were at the base of the mountain. Ren Suo noticed that the crowd's footsteps had nearly kicked through all 15 layers of the Pangolin's Armor.
The Armor resembled 'Clothing'—a special Energy Gauze Clothing attached to the body's surface. However, the Pangolin could choose 'Tough Out' during its first Evolution to gain 15 layers of Armor. This indicated that while the Armor seemed impressive, it was only at the Pangolin's level—a human could shatter a layer with a single step.