The school bully heroine who suffers from intermittent amnesia × the school bully male protagonist who was saved by her but forgotten
"Wen Jian", who is both good in character and academics, suffers from a rare intermittent amnesia. Every once in a while, she will randomly forget some people or things. Her only secret is the memo in her pocket with "Don't Forget" written all over it.
On the first day of school, Shen Ji, the most vicious school bully in the school, cornered her. Everyone thought she was going to suffer, but he asked with red eyes, "You really don't remember me?"
Wen Jian shook his head politely. She didn't know that a year ago, she was the one who pulled Shen Shen, who was covered in wounds and abandoned by the whole world, out of the alley, gave him a candy, and said, "Eat a candy, and it won't be so painful."
From that day on, she became the only light in his life. He changed things for her, restrained her anger, and desperately wanted to be admitted to the same high school as her. But what he waited for was her complete forgetfulness. He was unwilling to give in, so he appeared next to her over and over again, letting her know him again after she lost her memory, and clumsily making her fall in love with him again.
["Shen Shen, we seem to have known each other for a long time."]
["Well, if you forget, I will help you remember it."]
["Then when will you come back to comfort me?" - These are the words Wen Jian wrote in his diary before losing his memory but never sent it out.