Sit Diagonally Behind Her

She didn't know who put the milk in the table. I don't know who wrote the line "Take your time" in the draft. I don't know why the water bottle handed to me after running 800 meters was unscrewed. I don't know why he always sits diagonally behind her. She only remembered that three years ago at the school gate, a boy's homework fell on the floor. She helped pick it up and gave him a candy: "New classmate, eat something sweet." She forgot. He remembered it for three years. "Shen Yan, when did you start looking at me?" He put the pen down. "The first day of school." "You don't know me." "We know her." He looked at her, "I knew her three years ago." ——After that day, he made up the steps for every question she didn't know. He put every scrap of scrap paper she drew into a folder. For every box of chalk she put down, he replaced it with a new one. The whole school doesn't know. The top student in the grade who is as cold as ice—— The notebook is filled with paintings that she no longer wants. Later, she turned to the last page of the draft book and saw a line of words with sharp edges and corners: "Remember only what needs to be remembered." She didn't ask. Guess when she will know - he still keeps the wrapper of that candy.