Adjusting one’s breathing and spiritual power are things I did not teach him before! How did he manage to do it? Xuan Ziwen was puzzled as he watched Huo Yuhao. Right now, he was more and more interested in learning how his student managed to achieve such a standard.

At that moment, Huo Yuhao moved. He wasn’t quick. He casually grabbed a piece of rare metal and placed it in a mold. After that, he lifted a forging hammer and started to hammer the piece of rare metal.

Is he making the outer shell first? Xuan Ziwen had a skeptical look on his face.

For a soul engineer, the core formation should always be produced first when making a soul tool. This was because creating the outer shell of even an advanced-tier soul tool wasn’t very difficult. The real difficulty lay in the core formation.

However, Huo Yuhao wanted to manufacture the outer shell first. What was he doing?

In fact, he had thought too highly of Huo Yuhao. Huo Yuhao only chose to make the...