Liang Anning, who went to college at the age of 15, disappeared for a year, leaving only a notepad with a history of more than 10 years and some strange records. Jin Yan flipped through his notepad like crazy every day, always looking for the person he loved deeply, but after searching the entire Z country, there was no trace of Ning An. Where did Ning An go, what experiments was he doing, and why did he leave Jin Yan, who was as important as his life, without saying a word. HE.