Zero first generated her white geno armor, then underwent the process a second time. There was no pause between the sequences. Her geno armor simply melted and reshaped itself into a white knife. It looked like a dagger made of bone.
As Han Sen found himself joyous in the realization that Zero could evolve a second time, her bone knife suddenly cracked. It gave him quite a shock.
"What is this? Why did the geno armament crack, all by itself?" Han Sen did not understand. When he wanted to check on her and see if she was injured in any way, the energy surrounding Zero changed all of a sudden. Her black eyes turned purple, and then that color of purple started to spread.
Quickly, Zero's hair was overtaken by the purple dye. From her head, two horns protruded.
"Zero! Are you okay?" Han Sen was worried, but fortunately, Zero wasn't wounded. She had simply turned into her shura-self.