As soon as the heart of the sword reached 10%, Song Yan felt that there were more powerful swords in the vast void, and a sense of primitiveness and mystery emanated from all over his body.

This sword has no entity, nor is it condensed by true Qi, let alone spiritual force.

This is a state of mind.

can also be called heart sword.

"Very good!"

Song Inkstone's mouth was filled with a faint smile, with a little complacency. He had not just come to the point where he had just condensed the heart of the sword, and reached the realm of perfection of the heart of the sword.

It...