It is said that genes help people reject 80% of people, which means that the type of person you like has been recorded in your DNA. Often, if you don't like someone the first time you meet them, that's probably what's causing trouble. But falling in love at first sight, from another perspective, can also be a successful DNA match. She was initially dismissive of this, but when she was scrolling through her Moments, she saw a photo of a handsome guy in her Moments that stood out to her after a long time. She looked at his name. Who said that crushing when she was a kid was not crushing? When I was a child, I thought it was due to the hormonal agitation of puberty, but when I grew up, it happened to be about aesthetics. Isn't this a DNA choice?
Demining
The heroine has a mental illness (mild, almost recovered) and did not go to college after taking a break from school. The two had an affair when they were young in elementary school, but they almost fought with each other and were ignorant.
The heroine just wanted to have a relationship at first, but then the hero suddenly appeared, and because of the entanglements in her childhood, she started to talk seriously.
Purpose: Do the right thing at the right time