My Deskmate Was Time-Traveled by a Brave Man

When Qian Qing was running errands between classes, her cowardly classmate Cheng Hao suddenly turned into a brave man. He waved the teacher's ruler and shouted that he wanted to kill the devil Qian Qing. If the milk for the errand boy is broken, he will have to pay an overtime fee. The poor Qian Qing was so angry that she picked up a mop and covered his head! Intention: Work hard to grow, and the light will eventually appear