This headbutt was so reckless that Yi Chen's own forehead cracked open.
The front of Teacher Fang's face caved in completely, the shattered bones even piercing into the brain, but still, it didn't cause death… Just like Moon Scar's guess, the opponent's weakness wasn't the organs, but the fundamental iron chains within.
Taking advantage of the 'intimate contact' provided by the headbutt,
face to face,
Yi Chen buried his face into the recess of the other's visage… to be exact, he probed into Teacher Fang's skull, conducting 'internal spying' with the vision provided by the small grape. And what he saw was shocking.
Teacher Fang's body was not human at all,
Iron chains, gears, and all sorts of bearings, it was completely a metal life encased in blood and flesh, it was even the living core of the Art Hall.
Similarly,
the internal spying quickly found Teacher Fang's true core.