What is the Realm of Self?
This marvel of a martial realm was achieved by Yi Chen after exhausting countless chickens in the Pure Yang Flame Prison throughout his life.
The spirit seemed to detach from the body, sensing the breeze before it stirred, not needing to consciously command the body which would instinctively gather information from the surroundings and respond accordingly.
Battle is the best teacher.
Initially, during several surprise attacks by the Nether Tiger, Yi Chengzi faced some perilous situations but narrowly escaped. However, as time passed, Yi Chengzi's evasion maneuvers became increasingly smooth.
Even as the Nether Tiger spurred Demon Yuan and Demon Flames burnt the sky targeting an empty space, Yi Chengzi could still react before it made its move.