I Heard I'm the Top Student's White Moonlight [Reborn]

At sixteen, the person Pei Luoshu least wanted to see every day was Chu Ning, who had just moved in next door. She was noisy and always bouncing around, the exact opposite of her name. There was never a moment's peace. But thankfully, after he turned seventeen, he never saw Chu Ning again. She had been expelled for fighting at school. Not long after, she moved away. Pei Luoshu had congenital heart disease, but he never told anyone. To avoid seeming different from everyone else, he never took care of his health. Year after year, it caught up with him. By the time he was twenty-six, Pei Luoshu could no longer even get out of bed. With his life on the verge of ending at any moment, he was suddenly rushed into the operating room. When he woke up, he learned that Chu Ning had died in a car accident. She had signed an organ donation agreement long ago, specifying that her heart should go to him first. Only then did Pei Luoshu remember that summer vacation during his second year of high school, when Chu Ning stood by his desk and asked him, "Pei Luoshu, what's your blood type?" With his new heart, Pei Luoshu attended a class reunion for the first time. Someone brought up Chu Ning. They said, "I heard Chu Ning attacked that boy because he called Pei Luoshu a sickly weakling who wouldn't live past twenty." In that life, Pei Luoshu ultimately didn't live to see thirty. His body rejected the transplanted heart. - Pei Luoshu returned to the age of ten. In this life, he took good care of his heart. Six years later, his mother told him, "The new neighbors have a daughter your age. Her name is Chu Ning." - Years later, Pei Luoshu watched the Olympics with his students. When a girl draped in the national flag stepped onto the winners' podium, Pei Luoshu told his students, "That's your teacher's wife." World champion x programming genius. [Important Content Warning] * This is a fictional setting. Please don't get hung up on the heroine specifying that her organs be donated to the hero. Thank you! * The early part of this story is rather heartbreaking. If that's not your thing, please click X. Theme: Hard work will never go unrewarded.