In just seven days, inside the makeshift laboratory within the Spirit Realm's Secret Realm, China's research team tackled one challenge after another at an almost frenzied pace.

During this period, besides Su Muchen, many other powerful Beast Tamers actively participated in the tests, all achieving considerable improvements.

Yet, despite these advancements, some insurmountable problems still lay ahead.

For instance, some essential but extinct materials needed suitable substitutes.