For Su Qing, holding on to Shen Ran throughout her life has always been a needle in her heart. It hurts and makes her happy, and she wants to forget but doesn't want to forget. If she could go back 26 years in time, Su Qing would definitely tell her 18-year-old self to be brave, and tell Shen Ran at that time that we would be together after graduating from high school.
For Qin Ran, it was an instinct to meet Su Qing and chase after Su Qing, but this instinct eventually harmed Su Qing and forced him to leave his hometown. When the 26-year-old Qin Ran met Su Qing again, he firmly believed that he could give Su Qing happiness.