This time, she was ordered by the organization to steal the core technology of a certain project in the research institute.

She carefully selected the identity of Zhu Daya.

So before they entered the family compound, she dealt with Zhu Daya, and then simply disguised herself to take her place.

But among the people they contacted this time was someone who was very familiar with Zhu Daya, namely Old Mrs. Zhu. She had lived with Zhu Daya for seven years, so how could she not see that her granddaughter had been replaced?

So she tried to win over Old Mrs. Zhu.

After getting to know her, she discovered that Old Mrs. Zhu loved money and valued her maternal family.

So she gave Old Mrs. Zhu a sum of money and told her not to worry about her or tell anyone her identity.

It wasn't that she didn't want to kill Old Mrs. Zhu, but without Old Mrs. Zhu, she couldn't enter the family compound.

Grandma Zhu was very happy to receive the money, but she didn't suspect the person was a spy. After all, she thought the person was just a child. Of course, it's also possible that the person was greedy for money and deliberately didn't think of it that way.

It wasn't until the first incident at the research institute that Old Mrs. Zhu realized something was wrong. She secretly asked Daya, who told her not to get involved and offered her another benefit: arranging a job for her nephew. After finding out, Old Mrs. Zhu stopped interfering.

Of course, she was later forced to do some things for Daya, including causing trouble for the gatekeeper.

As for the other two members of the Zhu family, I don't know.

Researcher Zhu hasn't seen his daughter for many years, doesn't know what she looks like, let alone that she's been replaced.

His wife was the same.

As for why the fall and stomach injury provided Daya with the opportunity to deliver a message...

According to Grandma Zhu, Da Ya asked her to come up with a solution, but she was scared and didn't want to do it. So Da Ya simply took the opportunity to make Researcher Zhu's wife fall down.

Grandma Zhu was afraid that she would do something even more ruthless, so she cooperated with the operation the second time.

Su He sighed upon hearing this. Even if Researcher Zhu knew nothing, he was still impersonating his daughter, and his mother knew about it, so he would probably be implicated as well.

As for why Daya wanted to use this method to spread the news, it was because the news about the research institute's new project had recently been passed on to her by an insider within the institute. She was uneasy about keeping it to herself and needed to find an opportunity to spread it out as soon as possible.

However, during that period, the residential compound had clearly stipulated that no one was allowed to approach the gatekeeper.

So anyone who gets close to the gatekeeper must be suspicious. She didn't dare take the risk, so she could only create opportunities.

Furthermore, the two guards kept an eye on each other and were inseparable, making it difficult to reach anyone without distracting them.

Xiao Zhang was just a newly recruited informant. He was from the countryside and his family was very poor. He also needed to get married, so he always lived a very frugal life. This time, the enemy offered him so much that he couldn't resist the temptation and got involved.

It's just that because the time was too short, they hadn't trained yet, and they were too nervous, they panicked and instinctively tried to run away when they were exposed.

In addition, Da Ya also mentioned that she was afraid the police might send someone undercover to investigate them.

So they actually investigated all the families who moved in recently, but in the end they ruled out the possibility one by one.

The people being investigated included Su He, and thankfully their arrangements were proper; Hu Mei was a real person, otherwise they would have been exposed.