He took out a piece of white paper and immediately made a simple drawing.

To produce a complex soul tool, the first thing to do was to list out the requirements. After that, solutions had to be devised. The third step was to create the necessary formations using those solutions. Then, the formations had to be linked with one another. During this process of linkage, it was important to simplify things without compromising usefulness. The last step was to perform a mechanical run-in.

After these five steps, the core formations could then be worked on. The outer shells were then created based on how the core formations came out. 

The entire process was rather complicated.

When Huo Yuhao successfully created the Class 8 decomposition cannon, he was still some way off from the standards of a Class 8 soul engineer. After all, the blueprint that he had then was provided by Xuan Ziwen.

As Xuan Ziwen drew out a blueprint, he muttered to himself, “First is the choice of materials. Since our pill furnace will be Class 9, we need to consider...