C521 The Line Between Life and Death

While Black Peony was dealing with the enemy, she was also paying attention to Hsu Yi's movements.

It wasn't Black Peony's first time seeing Hsu Yi attack, but every time Hsu Yi attacked, the Boxing Arts never showed itself. It was all because of his movement technique.

Perhaps it was a simplified version of his body transforming into lightning! !!

As for Hsu Yi's Purple Emperor Fist