She hadn't slept well all night.
Su Nanzhi successfully stayed in bed too long and was late the next day.
An Yunhuai didn't know when exactly he had given up trying to cure this habit.
Of course, it might also be because he had been admitted to university himself, and was honestly waiting at home for his sister to wake up naturally.
In fact, it obviously wasn't a natural awakening; the alarm had gone off over and over again, and no one knew after which ring Su Nanzhi actually awoke.
Last night's dream tortured Su Nanzhi so much that, even though she managed to fall back asleep, she kept waking up in fear of having another surreal dream.
It could leave a psychological shadow on her.
The security guard at the school gate had already recognized the two of them and finally realized that they weren't a young couple, but sibling.
This time, the guard had gotten used to it and greeted the pair with their backpacks: "Overslept again today, huh?"