Battle of Test subjects (Part 2).

Leo brandished his swords and kept slashing at the monster but its hide was too tough so all Leo could do was leave a few marks on its body which would heal almost instantly. Leo's defenses were even worse.

He received a punch and tried to block it with his arms but he was sent flying and both his arms broke, together with a few of his ribs.

Leo groaned as he was sent flying, hitting a few vehicles before finally stopping after colliding with a building with his back. He was lunged sixty-six meters forward with a tremendous force that would've killed a normal person. Leo felt excruciating pain all over his body but the pain in his arm was even worse. He spat out a mouthful of blood and struggled to get on his feet.

"Nrrgh! That hurts." He groaned but what happened next surprised him. His arms and ribs which were crushed and badly disfigured began to heal at a remarkable speed.