This is a Rex fanfiction. The heroine is Duan Chuyi, who has known Rex since childhood. The second heroine is Yu Jiangjiang, who grew up with Ding Xiaoyu.
Everything in this story is the author's own interpretation. If anything is unclear, I won't listen to complaints. You can choose not to read it, but please don't insult me. Otherwise, you've got nothing better to do.
The author's writing is at an elementary school level.
I hope the author will keep writing and not give up.