After two years of dating, Kana and I decided to get married. There are only two weeks left until the wedding, and Kana wants to attend the class reunion to share this good news with her friends. Kana is an incredibly beautiful, sociable girl who always attracts others' attention, so I feel very anxious. I also know that Kana doesn't drink, but now people often invite each other to go out for drinks. However, what makes me more worried is that Kana's ex-boyfriend is also there! Even though I know they broke up, I'm still very anxious because he's taller and better looking than me! That night, I anxiously waited for a call from Kana. After a long while, Kana sent me a video. She was having fun with her friends, but what I was most concerned about was that she was sitting next to her ex-boyfriend! Although he did one small thing that annoyed me, I could still overlook it. But continuing to wait for a long time without any sign from her, with my messages going unread and my calls unanswered, made me extremely anxious. Kana called me quite late. She explained that she was feeling sick and was being taken care of by a friend. I wanted to talk to that friend to thank them, but Kana wouldn’t agree. While talking, I also heard a strange "slurping" sound. When I asked Kana about it, she said she didn't know. Then suddenly, Kana screamed and hung up; I couldn't call back. I was left alone with thousands of guesses swirling in my mind, waiting for Kana to return, and I fell asleep without even realizing it...