Could one really change the past?

"Right now?" The nurse looked at her with a puzzled expression after checking her condition visually. "It seems like you still need a lot of rest, Miss Luo. Why don't you stay here for the meantime while I send a note to your class teacher about your condition?"

"There is no need for that, Nurse. I will be fine." Luo Kexin struggled to stand up with all her might even though her body was racked with pain. She tried not to show it and instead revealed a sweet smile that made her wince again with her cut lip. "Could you please let me go? I really need to go back home now

The nurse wanted to say something but immediately figured that the girl was probably wanted to go home because she didn't feel safe here. She sighed and nodded slowly. "Alright, I can approve of your leave but you should report this case to your class teacher later. Those bullies shouldn't get away with and I am sure that the school authorities would surely handle this...."