In 2026, Yan Xi found a Polaroid among his girlfriend Lexi's old things - the photo showed her when she was 19 years old, with a senior standing next to her, whose profile looked exactly like his. Lexi looked over and said, "That senior? I can't remember clearly. His last name seems to be Lin..."
Yan Xi's thumb rubbed across the back of the photo, and a line of erased pencil words was looming. When he opened his eyes again, he traveled to 2018 and became sophomore Lin Weichi.
19-Year-old Lexi is introverted and shy. He only introduced himself in five sentences before leaving the stage. Yan Xi approached her as "Senior Lin" - handing her a glass of water, running 800 meters with her, and sitting in the library all autumn.
She slowly learned to speak, and learned to say, "It's okay as long as you're by my side."
But the price is happening: every time she changes her past, the shared memory of the two in 2026 becomes blurry. The hot pot restaurant misremembered, and the details of the first date disappeared—and eventually, Yan Xi herself forgot what their first kiss looked like.
He had to make a choice: stay with her again, or stop here?
Seven years later, Lexi opened her old mobile phone and heard a sentence left by her 19-year-old self: "If someone says his name is Yan Xi - tell him you've been waiting."
Intention: Love is not about "rewriting the past for her", but "accompanying her to reach a better present".