This chapter opens with a description of the sun-moon academy's soul tool, which has been developed over the past 30 years. The academy has spent the last 30 years developing this tool, and it has been able to withstand attacks from the highest level of soul engineers. The soul tool also contains a barrier, which prevents the beast from detecting the breath of humans. It also retracts its legs and rolls down the mountain when it is in danger. This is a waste of material, but the academy hopes to find an alternative source of energy in the future. This soul tool is the most advanced technology of the star-luo empire, but only through trial-and-error can the academy improve it. This chapter ends with a discussion of the pros and cons of developing too fast. People often resort to violence and start riots, and the best thing to do is to divert the attention away from internal conflicts and external conflicts. We learn that the academy has been developing the soul tool for 30 years, but it has not yet been used to its full potential. If the academy were to find a new energy source, everyone could use it.