Xiang Yuan Ling (Cheng Hailizi), a high school student who lives with his family, is introverted. Aling has no friends in the class. Seeing that all her classmates have mobile phones, she is eager to have one. A Ling found a toy cell phone in the park one day. She thought it was fun and stayed. Unexpectedly, when she was resting in the school health room the next day, the phone rang unexpectedly. In a hurry, she answered the phone with a young man. Then she got to know the boy named Shen Ya (Xiao Shu Hui Jie). Shen also lives with his grandmother. he just graduated from high school and now works in a waste recycling company. On the phone, A Ling and Shen also chatted and exchanged things with each other. The two people who were also lonely gradually came together because of this accident. Aling was encouraged by caution and became more and more cheerful, and the two influenced and changed each other. They agreed to meet in Tokyo at the weekend, and Aling was excited to finally have a face-to-face conversation with Shen, but an unexpected fact also went to Aling.