I traveled through hundreds of worlds at once

"Could this stone be..." Yi Hui looked at the blue magic stone on the altar, narrowed his eyes and was secretly surprised.

If his guess was correct, this stone might be something that everyone in the entire mechanical world knows, the prototype of Eve's heart.

[Eve's Heart], the most popular magic circuit in the mechanical world, can give life and soul to all automatic dolls, and is also the only special magic circuit that will not trigger the [Magic Activity Incoordination Principle].

It can be said that [Eve's Heart] is the original origin and origin of mechanical civilization.