Two Hypotheses, Bloodline Traits

Xiao Man's [Evolution Path] now also displayed the words "None Available."

In just one week, the goodwill of the Customers had completely overturned the conditioning it had received.

At present, the behavioral traits of Xiao Man and Nang Nang could basically support a hypothesis—the younger the [Courier Bird], the more likely it was to possess the prerequisite for evolving into an entirely new form after receiving goodwill.

Moreover, the earlier it encountered that goodwill, the higher the probability would be.

This was a very important theoretical foundation.

Although Lin Yuan currently had only two successful cases, he was still confident.

That was because the other two pets in the "Emotional Change Group" had recently shown more and more instances of the emotion "struggle" in their [Status] columns.

Though it was called struggle, they were actually growing happier every day.

It was just that this happiness made them feel a little "Guilt" and "at a loss," because it clashed with their systems of understanding.

It could be said that they were suffering and enjoying themselves at the same time.

Not only that, the "Free Development Group" had also yielded some interesting discoveries.

Three-year-old Zi Ji would proactively choose the routes of Customers who had shown it more goodwill in its memories when freely selecting delivery missions.

Nine-year-old Tailwind had already worked for "half its life," so it would choose the delivery method it was accustomed to.

This led Lin Yuan to his second hypothesis—for the current training system of [Courier Birds], as well as their current social status, fundamentally changing them might require human intervention, especially for those [Courier Birds] of advanced working age.

Lin Yuan put down his pen.

The research progress had already been far faster than he had imagined.

Next, he only needed to increase the sample size