The 30-second power outage in the library is anonymous in Zhihu, so it is unknown which school the male host is in. This stalk comes from a short story published by a girl in Zhihu, which happened at a girl's birthday party. The girl found that the boy was chatting with another girl within 30 seconds of her wish. The girl classmate said to the boy, "The library is out of power. I am so scared." A girl and her boyfriend have been together for eight years, and they have reached the point of talking about marriage. One night, a girl found that a girl sent a message on her boyfriend's mobile phone, and the girl clicked in to read it. On the girl's birthday, the boy did not give her the time within 30 seconds according to the girl's wish, but gave it to another female classmate, and the eight-year relationship collapsed overnight.