She didn't know whether more mutants would appear in the future, so she had to be careful.
It was difficult to destroy a single mutant. If there were more mutants to come, she honestly didn't know how to handle them.
Anyway, it was necessary for her to investigate the man's relationship with the mutants.
Although Gu Ning wasn't sure whether the man was the controller of mutants, it was obvious that he had a special relationship with the mutants. As long as she could find him, she would get more clues about mutants.
Since she already had his phone number, K could help her find him.
The man used this phone number to call and text, so it wouldn't be hard to get some useful information about him.
Once they found out the man's identity, they could learn more about mutants.
Mutants were supposed to be completely destroyed, because they were a great threat to a country's safety.
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