Gu Huai is reborn. In his previous life, he was an illegitimate son who was rejected by his family. His only glory was his deskmate Shen Wei - the girl who would secretly stuff candy into his table when no one was looking. In his senior year of high school, Shen Wei mysteriously dropped out of school due to family changes. He had been looking for her for fifteen years, and the next time he got the news was at her funeral: she had terminal gastric cancer and died at the age of twenty-eight.
The first second after he was reborn in 1998, Gu Huai had only one thought: this time, it would be him to protect her. But he soon discovered that something was wrong with Shen Wei. Her eyes were deeper and more paranoid than he remembered. She would say "who did it" with red eyes when he was hurt, would crush the glass in her hand when he was talked to by other girls, would climb into his room late at night to cover him with a quilt, and then sit on the edge of the bed and watch him all night long.
She is a yandere. But Gu Huai found that he couldn't escape at all - because fifteen years of searching in his previous life had turned him into another kind of yandere. Two "sick" people found the only antidote in each other's extremes.
