Who Said That Licking a Dog Will Lead to a Good Death?

My name is Lu Chuan, an ordinary man from science and engineering. I have been pursuing Hua Suwan, who majored in music, for a whole year, but there has been no progress. My roommate said I was in the late stages of being a dog licker, and I called it affectionate. Then on November 17, 2025, my birthday, she suddenly agreed. In the moonlight white dress, she handed me the harmonica that had been with her for many years and said it was given to you as a token of love. The month after that was the sweetest day in my life. She taught me a piece of music, saying she wrote it herself and had never played it to anyone else. Then on December 17, 2025, she seemed like a different person. Cold, alienated, can't even remember what happened that month. She said, "Did the things you said really happen?" I took the harmonica she gave me and my mind went blank. I used the memory of that month to chase her again for a year. She slowly recovered, but I found that I had lost the memory of a day - September 13, 2026. That day seemed to have been dug out of the calendar, clean and tidy. On November 17, 2026, I asked her to go up the mountain to prepare a formal confession. Before he could speak, the boulder rolled down. When I woke up again, only the harmonica was left in my arms. Play that song and you can go back in time. Harmonica gave me two options: Option one, go back to September 13, 2026, countless times. Option two, go back to that month at the cost of disappearing forever. I think of what she said on my shoulder the night after she finished teaching the music—— "Don't do anything stupid, especially for me." I chose option one. Not for me, but for her.