In the spring of 2022, a new round of epidemic broke out in Donghai, the most developed international metropolis in China. In Hongwen Community, Arafak, a Nicorian foreign friend who rented here, was awakened from his dream by a burst of knocking on the door. In a trance, he thought he had returned to his chaotic Black Africa hometown, where the rapid knocking on the door often represents warlords, extremists and death. Darling, who was knocking on the door? Wave? A soft voice asked sleepily, accompanied by soft and elastic skin touch. Arafak lifted the quilt, and a naked Chinese girl was snuggling in his arms. He came to his senses. He was not in his hometown of Black Africa at this moment, but he was studying in a peaceful and rich Chinese country. This Chinese girl was the Chinese schoolmate arranged for him by Zhendan University, named Zhang Xiaowen