At midnight, Fu Zhengzheng wakes up and feels thirsty, so she plans to go downstairs to drink water. But when she just walks down two steps, she hears a muffled sound coming from downstairs. She is very alert and feels something is wrong. Then she pauses and leans against the stair to listen to what’s going on downstairs.

“Be careful. Don’t wake them up!”

It’s her father’s voice.

Fu Zhengzheng lifts her hand at once to look at the watch, ...