The heavenly court soon issued immortal moral codes. In addition to not killing easily in their own universe, exterminating the roots as much as possible outside the universe, and not easily forming karma, there was also a special rule that there was a way out in everything, such as leaving the roots when picking immortal herbs.
The manual also specifically reminded the demon race that since they had become demon Immortals, they had to subdue their instincts and control their own bloodline. They could not be controlled by their bloodline, let alone let their instincts affect them. They had to display their natural character.
The natural personality that was mentioned here was not about being aggressive, but an instinct that was as pure as innocence, just like eating and drinking. It was reflected inside and not outside. Such a manual was like a lecture.