This novel told the story of the male protagonist's name being Che, and the female protagonist being a secret agent who transmigrated after being blown up?

It was a time-travel novel. The male protagonist was called Che, and the female protagonist was a secret agent who was killed in an explosion and transmigrated. The first chapter is about the female protagonist who woke up from falling into the water and felt that it was very noisy. The ending is about the female protagonist's parents who can visit the female protagonist once every seven years. One of the female protagonist's sons also found a transmigrated woman as his wife. The female protagonist's son and daughter both call her mommy and daddy. When the male protagonist and the female protagonist got married, the male protagonist was still wearing a suit. That's about it. I don't know which book I read a long time ago. If you guys know, tell me