As the level of cultivation of the Golden Bell Shield and Iron Cloth Shirt rises, the area of the Cover Door gradually decreases. However, it only completely disappears after achieving the twelfth level.
The Cover Door of Huo Du was roughly the size of an adult's palm. Once struck, the concentrated Cultivation Strength would immediately dissipate, not only making it difficult to recover in a short period of time but also resulting in certain damage. It was akin to slamming the brakes when driving at over three hundred kilometers per hour, with terrifying consequences.
Even though the Cover Door was well-hidden and small, the cautious Huo Du had specifically installed a steel plate, with a rubber pad on the inside to act as a shock absorber. No matter the weather, be it bitter cold or scorching heat, he carried it with him at all times, especially in the summer when it caused heat rashes. Still, Huo Du persisted.
