I traveled through hundreds of worlds at once

Hei Zhen looked at Yi Hui with a look of "are you kidding me?" Ladon, the giant dragon with a hundred heads, the dragon that never sleeps, was ordered by the god king Zeus to guard the golden apple tree in Greek mythology, but it turned out to be a multi-headed mechanical dragon.

"How did you do this?" Hei Zhen felt that the Greek mythology he knew was completely overturned, but then he thought that the ancestor of all demons in the Greek Age of Gods in this world was replaced by this bastard in front of him, and it was not surprising that anything happened. He could only suppress his inner complaints and asked in confusion after hesitating for a moment.

How could a dragon-shaped robot made of pure metal become