You Two, Do You Remember That You Are Mortal Enemies?

In my sophomore year of high school, a transfer student came in. Yu Suihuan: This person seems to be the same person as the dog Shen Qiubai in junior high school. The two got into a fight on the first day of school. From then on, we started fighting each other more and more fiercely. We asked them what their relationship was. Two people: Don't ask, asking will make you a mortal enemy. Finally, the relationship has eased Shen Qiubai: I treat her as my sister, so naturally I should treat her better One year later—— Shen Qiubai: Stop pretending, let's show off. I haven't wanted to be a human being since junior high school. Yu Suihuan: Don't say that Shen Qiubai: Why? Yu Suihuan: Because I am too Everyone: Where is the promised rival?